Gulpers versus Earthmen
From Author Wars - https://authorwars.com/books/gulpers-versus-earthmen-1118254.html
Overview:
- Title: Gulpers versus Earthmen
- Author: uncredited
- Year: 1939
- Type: Interior Art
Editions/Publications:
- Unknown. Amazing Stories, December 1939 (Unknown, uncredited, Ziff-Davis Publishing Company, $0.20, 148 pages, pulp, MAGAZINE)