Editoras Positronic Publishing

Cover for Leigh Brackett · Black Amazon of Mars (Paperback Book) (2020)
Paperback Book
Black Amazon of Mars
Leigh Brackett
Cover for Leigh Brackett · Shannach (Hardcover Book) (2020)
Hardcover Book
Shannach
Leigh Brackett
Cover for Leigh Brackett · Shannach (Paperback Book) (2020)
Paperback Book
Shannach
Leigh Brackett
Cover for Leigh Brackett · Lorelei of the Red Mist (Hardcover Book) (2020)
Hardcover Book
Lorelei of the Red Mist
Leigh Brackett
Cover for Leigh Brackett · Lorelei of the Red Mist (Paperback Book) (2020)
Paperback Book
Lorelei of the Red Mist
Leigh Brackett
Cover for Leigh Brackett · The Ark of Mars (Hardcover Book) (2020)
Hardcover Book
The Ark of Mars
Leigh Brackett
Cover for Leigh Brackett · The Ark of Mars (Paperback Book) (2020)
Paperback Book
The Ark of Mars
Leigh Brackett
Cover for Leigh Brackett · Last Call from Sector 9G (Hardcover Book) (2020)
Hardcover Book
Last Call from Sector 9G
Leigh Brackett
Cover for Leigh Brackett · Last Call from Sector 9G (Paperback Book) (2020)
Paperback Book
Last Call from Sector 9G
Leigh Brackett
Cover for Leigh Brackett · The Road to Sinharat (Hardcover Book) (2020)
Hardcover Book
The Road to Sinharat
Leigh Brackett
Cover for Leigh Brackett · The Road to Sinharat (Paperback Book) (2020)
Paperback Book
The Road to Sinharat
Leigh Brackett
Cover for Ray D Bradbury · Ray Bradbury Super Pack (Hardcover Book) (2020)
Hardcover Book
Ray Bradbury Super Pack
Ray D Bradbury
Cover for Ray D Bradbury · Ray Bradbury Super Pack (Paperback Book) (2020)
Paperback Book
Ray Bradbury Super Pack
Ray D Bradbury
Cover for Ray D Bradbury · The Creatures That Time Forgot (Hardcover Book) (2021)
Hardcover Book
The Creatures That Time Forgot
Ray D Bradbury
Cover for Ray D Bradbury · The Creatures That Time Forgot (Paperback Book) (2021)
Paperback Book
The Creatures That Time Forgot
Ray D Bradbury
Cover for Evelyn E Smith · Evelyn E. Smith Super Pack (Hardcover Book) (2021)
Hardcover Book
Evelyn E. Smith Super Pack
Evelyn E Smith
Cover for Evelyn E Smith · Evelyn E. Smith Super Pack (Paperback Book) (2021)
Paperback Book
Evelyn E. Smith Super Pack
Evelyn E Smith
Cover for Evelyn E Smith · Call Me Wizard (Hardcover Book) (2021)
Hardcover Book
Call Me Wizard
Evelyn E Smith
Cover for Evelyn E Smith · Call Me Wizard (Paperback Book) (2021)
Paperback Book
Call Me Wizard
Evelyn E Smith
Cover for Evelyn E Smith · Collector's Item (Hardcover Book) (2021)
Hardcover Book
Collector's Item
Evelyn E Smith
Cover for Evelyn E Smith · Collector's Item (Paperback Book) (2021)
Paperback Book
Collector's Item
Evelyn E Smith
Cover for Evelyn E Smith · Helpfully Yours (Hardcover Book) (2021)
Hardcover Book
Helpfully Yours
Evelyn E Smith
Cover for Evelyn E Smith · Helpfully Yours (Paperback Book) (2021)
Paperback Book
Helpfully Yours
Evelyn E Smith
Cover for Evelyn E Smith · The Princess and the Physicist (Hardcover Book) (2021)
Hardcover Book
The Princess and the Physicist
Evelyn E Smith
Cover for Evelyn E Smith · The Princess and the Physicist (Paperback Book) (2021)
Paperback Book
The Princess and the Physicist
Evelyn E Smith
Cover for Evelyn E Smith · The Venus Trap (Hardcover Book) (2021)
Hardcover Book
The Venus Trap
Evelyn E Smith
Cover for Evelyn E Smith · The Venus Trap (Paperback Book) (2021)
Paperback Book
The Venus Trap
Evelyn E Smith
Cover for Evelyn E Smith · The Ignoble Savages (Hardcover Book) (2021)
Hardcover Book
The Ignoble Savages
Evelyn E Smith
Cover for Evelyn E Smith · The Ignoble Savages (Paperback Book) (2021)
Paperback Book
The Ignoble Savages
Evelyn E Smith
Cover for Evelyn E Smith · Once a Greech (Hardcover Book) (2021)
Hardcover Book
Once a Greech
Evelyn E Smith
Cover for Evelyn E Smith · Once a Greech (Paperback Book) (2021)
Paperback Book
Once a Greech
Evelyn E Smith
Cover for Evelyn E Smith · Two Suns of Morcali (Hardcover Book) (2021)
Hardcover Book
Two Suns of Morcali
Evelyn E Smith
Cover for Evelyn E Smith · Two Suns of Morcali (Paperback Book) (2021)
Paperback Book
Two Suns of Morcali
Evelyn E Smith
Cover for Evelyn E Smith · Sentry of the Sky (Hardcover Book) (2021)
Hardcover Book
Sentry of the Sky
Evelyn E Smith
Cover for Evelyn E Smith · Sentry of the Sky (Paperback Book) (2021)
Paperback Book
Sentry of the Sky
Evelyn E Smith
Cover for Roger Zelazny · Manna from Heaven (Hardcover Book) (2021)
Hardcover Book
Manna from Heaven
Roger Zelazny
Cover for Fritz Leiber · Lean Times in Lankhmar (Hardcover Book) (2021)
Hardcover Book
Lean Times in Lankhmar
Fritz Leiber
Cover for Fritz Leiber · Lean Times in Lankhmar (Paperback Book) (2021)
Paperback Book
Lean Times in Lankhmar
Fritz Leiber
Cover for Fritz Leiber · The Wolf Pack (Hardcover Book) (2021)
Hardcover Book
The Wolf Pack
Fritz Leiber
Cover for Fritz Leiber · The Wolf Pack (Paperback Book) (2021)
Paperback Book
The Wolf Pack
Fritz Leiber
Cover for Algis Budrys · The Barbarians (Hardcover Book) (2021)
Hardcover Book
The Barbarians
Algis Budrys
Cover for Algis Budrys · The Barbarians (Paperback Book) (2021)
Paperback Book
The Barbarians
Algis Budrys
Cover for Algis Budrys · Wall of Crystal, Eye of Night (Hardcover Book) (2021)
Hardcover Book
Wall of Crystal, Eye of Night
Algis Budrys
Cover for Algis Budrys · Wall of Crystal, Eye of Night (Paperback Book) (2021)
Paperback Book
Wall of Crystal, Eye of Night
Algis Budrys
Cover for Philip K Dick · The Variable Man (Hardcover Book) (2021)
Hardcover Book
The Variable Man
Philip K Dick
Cover for Philip K Dick · The Variable Man (Paperback Book) (2021)
Paperback Book
The Variable Man
Philip K Dick
Cover for Stanley G Weinbaum · Valley of Dreams (Hardcover Book) (2021)
Hardcover Book
Valley of Dreams
Stanley G Weinbaum
Cover for Stanley G Weinbaum · Valley of Dreams (Paperback Book) (2021)
Paperback Book
Valley of Dreams
Stanley G Weinbaum
Cover for Stanley G Weinbaum · A Martian Odyssey (Hardcover Book) (2021)
Hardcover Book
A Martian Odyssey
Stanley G Weinbaum
Cover for Stanley G Weinbaum · A Martian Odyssey (Paperback Book) (2021)
Paperback Book
A Martian Odyssey
Stanley G Weinbaum
Cover for Stanley G Weinbaum · Stanley G. Weinbaum's Mars (Hardcover Book) (2021)
Hardcover Book
Stanley G. Weinbaum's Mars
Stanley G Weinbaum
Cover for Stanley G Weinbaum · Stanley G. Weinbaum's Mars (Paperback Book) (2021)
Paperback Book
Stanley G. Weinbaum's Mars
Stanley G Weinbaum
Cover for Murray Leinster · The Runaway Skyscraper (Hardcover Book) (2021)
Hardcover Book
The Runaway Skyscraper
Murray Leinster
Cover for Murray Leinster · The Runaway Skyscraper (Paperback Book) (2021)
Paperback Book
The Runaway Skyscraper
Murray Leinster
Cover for Philip Jose Farmer · Rastignac the Devil (Hardcover Book) (2021)
Hardcover Book
Rastignac the Devil
Philip Jose Farmer
Cover for Philip Jose Farmer · Rastignac the Devil (Paperback Book) (2021)
Paperback Book
Rastignac the Devil
Philip Jose Farmer
Cover for Edmond Hamilton · The Legion Of Lazarus (Hardcover Book) (2021)
Hardcover Book
The Legion Of Lazarus
Edmond Hamilton
Cover for Edmond Hamilton · The Legion Of Lazarus (Paperback Book) (2021)
Paperback Book
The Legion Of Lazarus
Edmond Hamilton
Cover for Roger Zelazny · Martian Super Pack - Positronic Super Pack (Hardcover Book) (2021)
Hardcover Book
Martian Super Pack - Positronic ...
Roger Zelazny
Cover for Roger Zelazny · Martian Super Pack (Paperback Book) (2021)
Paperback Book
Martian Super Pack
Roger Zelazny
Cover for Ray Cummings · The Fire People (Hardcover Book) (2021)
Hardcover Book
The Fire People
Ray Cummings
Cover for Ray Cummings · The Fire People (Paperback Book) (2021)
Paperback Book
The Fire People
Ray Cummings
Cover for Otis Adelbert Kline · The Outlaws of Mars (Hardcover Book) (2021)
Hardcover Book
The Outlaws of Mars
Otis Adelbert Kline
Cover for Otis Adelbert Kline · The Outlaws of Mars - Otis Adelbert Kline's Mars (Paperback Book) (2021)
Paperback Book
The Outlaws of Mars - Otis Adelb...
Otis Adelbert Kline
Cover for Otis Adelbert Kline · The Swordsman of Mars (Hardcover Book) (2021)
Hardcover Book
The Swordsman of Mars
Otis Adelbert Kline
Cover for Otis Adelbert Kline · The Swordsman of Mars (Paperback Book) (2021)
Paperback Book
The Swordsman of Mars
Otis Adelbert Kline
Cover for Otis Adelbert Kline · Otis Adelbert Kline's Mars Series (Hardcover Book) (2021)
Hardcover Book
Otis Adelbert Kline's Mars Series
Otis Adelbert Kline
Cover for Otis Adelbert Kline · Otis Adelbert Kline's Mars Series (Paperback Book) (2021)
Paperback Book
Otis Adelbert Kline's Mars Series
Otis Adelbert Kline
Cover for Jessie L Weston · Sir Gawain and the Green Knight (Hardcover Book) (2021)
Hardcover Book
Sir Gawain and the Green Knight
Jessie L Weston
Cover for Jessie L Weston · Sir Gawain and the Green Knight (Paperback Book) (2021)
Paperback Book
Sir Gawain and the Green Knight
Jessie L Weston
Cover for H Beam Piper · Omnilingual (Hardcover Book) (2021)
Hardcover Book
Omnilingual
H Beam Piper
Cover for H Beam Piper · Omnilingual (Paperback Book) (2021)
Paperback Book
Omnilingual
H Beam Piper
Cover for Frank Belknap Long · The Man the Martians Made (Hardcover Book) (2021)
Hardcover Book
The Man the Martians Made
Frank Belknap Long
Cover for Frank Belknap Long · The Man the Martians Made (Paperback Book) (2021)
Paperback Book
The Man the Martians Made
Frank Belknap Long
Cover for Damon Knight · Doorway to Kal-Jmar (Hardcover Book) (2021)
Hardcover Book
Doorway to Kal-Jmar
Damon Knight
Cover for Damon Knight · Doorway to Kal-Jmar (Paperback Book) (2021)
Paperback Book
Doorway to Kal-Jmar
Damon Knight
Cover for C L Moore · The Tree of Life (Hardcover Book) (2021)
Hardcover Book
The Tree of Life
C L Moore
Cover for C L Moore · The Tree of Life (Paperback Book) (2021)
Paperback Book
The Tree of Life
C L Moore
Cover for C M Kornbluth · Mars Child (Hardcover Book) (2021)
Hardcover Book
Mars Child
C M Kornbluth
Cover for C M Kornbluth · Mars Child (Paperback Book) (2021)
Paperback Book
Mars Child
C M Kornbluth
Cover for Nelson S Bond · Castaways of Eros (Hardcover Book) (2021)
Hardcover Book
Castaways of Eros
Nelson S Bond
Cover for Nelson S Bond · Castaways of Eros (Paperback Book) (2021)
Paperback Book
Castaways of Eros
Nelson S Bond
Cover for Clifford D Simak · Message from Mars (Hardcover Book) (2021)
Hardcover Book
Message from Mars
Clifford D Simak
Cover for Clifford D Simak · Message from Mars (Paperback Book) (2021)
Paperback Book
Message from Mars
Clifford D Simak
Cover for Jack Williamson · The Doom from Planet 4 (Hardcover Book) (2021)
Hardcover Book
The Doom from Planet 4
Jack Williamson
Cover for Jack Williamson · The Doom from Planet 4 (Paperback Book) (2021)
Paperback Book
The Doom from Planet 4
Jack Williamson
Cover for Jr Walter Miller · It Takes a Thief (Hardcover Book) (2021)
Hardcover Book
It Takes a Thief
Jr Walter Miller
Cover for Jr Walter Miller · It Takes a Thief (Paperback Book) (2021)
Paperback Book
It Takes a Thief
Jr Walter Miller
Cover for Henry Kuttner · The Eyes of Thar (Hardcover Book) (2021)
Hardcover Book
The Eyes of Thar
Henry Kuttner
Cover for Henry Kuttner · The Eyes of Thar (Paperback Book) (2021)
Paperback Book
The Eyes of Thar
Henry Kuttner
Cover for Carl Jacobi · Enter the Nebula (Hardcover Book) (2021)
Hardcover Book
Enter the Nebula
Carl Jacobi
Cover for Carl Jacobi · Enter the Nebula (Paperback Book) (2021)
Paperback Book
Enter the Nebula
Carl Jacobi
Cover for Edmond Hamilton · Monsters of Mars (Hardcover Book) (2021)
Hardcover Book
Monsters of Mars
Edmond Hamilton
Cover for Edmond Hamilton · Monsters of Mars (Paperback Book) (2021)
Paperback Book
Monsters of Mars
Edmond Hamilton
Cover for Eleanor Roosevelt · This Troubled World (Hardcover Book) (2021)
Hardcover Book
This Troubled World
Eleanor Roosevelt
Cover for Eleanor Roosevelt · This Troubled World (Paperback Book) (2021)
Paperback Book
This Troubled World
Eleanor Roosevelt
Cover for Roger Zelazny · Immer, Zlaz (Hardcover Book) (2022)
Hardcover Book
Immer, Zlaz
Roger Zelazny
Cover for Sean Matuk · Die in Obscurity (Hardcover Book) (2022)
Hardcover Book
Die in Obscurity
Sean Matuk
Cover for Franklin W Dixon · The Tower Treasure - Hardy Boys Mysteries (Hardcover Book) (2022)
Hardcover Book
The Tower Treasure - Hardy Boys ...
Franklin W Dixon
Cover for Franklin W Dixon · The House on the Cliff (Hardcover Book) (2023)
Hardcover Book
The House on the Cliff
Franklin W Dixon