The 4-Sided Triangle
From Author Wars - https://authorwars.com/books/the-4-sided-triangle-1228177.html
Overview:
- Title: The 4-Sided Triangle
- Author: uncredited
- Year: 1939
- Type: Interior Art
Editions/Publications:
- Unknown. Amazing Stories, November 1939 (Unknown, uncredited, Ziff-Davis Publishing Company, $0.20, 148 pages, pulp, MAGAZINE)
- Unknown. Science Fiction Adventure Classics, March 1972 (Unknown, uncredited, Ultimate Publishing Co., Inc., $0.60, 132 pages, digest, MAGAZINE)