Letter (Astounding, May 1939): 2+2=3!

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Overview:

Title: Letter (Astounding, May 1939): 2+2=3!
Author: Allan Ingvald Benson
Year: 1939
Type: Essays

Editions/Publications:

Unknown. Astounding Science-Fiction, May 1939 (Unknown, Allan Ingvald Benson, Street & Smith Publications, Inc., $0.20, 164 pages, pulp, MAGAZINE)