Gamow's "Ylem"

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Overview:

Title: Gamow's "Ylem"
Author: Roy Zuber
Year: 1951
Type: Essays

Editions/Publications:

Unknown. Amazing Stories, March 1951 (Unknown, Roy Zuber, Ziff-Davis Publishing Company, $0.25, 164 pages, pulp, MAGAZINE)
Unknown. Amazing Stories, #12 (Unknown, Roy Zuber, Thorpe & Porter, 2/-, 132 pages, pulp, MAGAZINE)