The Caves of Mars
From Author Wars - https://authorwars.com/books/the-caves-of-mars-1023365.html
Overview:
- Title: The Caves of Mars
- Author: Alex Schomburg
- Year: 1965
- Type: Cover Art
Editions/Publications:
- Unknown. The Caves of Mars / Space Mercenaries (Unknown, Alex Schomburg, Ace Books, $0.45, 125+131 pages, dos, Omnibus)