Prison Planet
From Author Wars - https://authorwars.com/books/prison-planet-195206.html
Overview:
- Title: Prison Planet
- Author: Robert Silverberg
- Year: 1958
- Type: Short Fiction
Editions/Publications:
- Unknown. Super-Science Fiction, February 1958 (Unknown, Robert Silverberg, Headline Publications Inc., $0.35, 132 pages, digest, MAGAZINE)