An Ultimatum from Mars
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Overview:
- Title: An Ultimatum from Mars
- Author: Ray Cummings
- Year: 1939
- Type: Short Fiction
Editions/Publications:
- Unknown. Astounding Science-Fiction, August 1939 (Unknown, Ray Cummings, Street & Smith Publications, Inc., $0.20, 164 pages, pulp, MAGAZINE)
- 2022 . An Ultimatum from Mars (2022, Ray Cummings, Faded Page, C$0.00, ebook, Chapter Book)