Jump into Space!

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Overview:

Title: Jump into Space!
Author: J. R. Marks
Year: 1950
Type: Essays

Editions/Publications:

Unknown. Amazing Stories, December 1950 (Unknown, J. R. Marks, Ziff-Davis Publishing Company, $0.25, 164 pages, pulp, MAGAZINE)
Unknown. Amazing Stories, #10 (Unknown, J. R. Marks, Thorpe & Porter, 2/-, 132 pages, pulp, MAGAZINE)