The Story of Our Earth: The Conquest of the Land
From Author Wars - https://authorwars.com/books/the-story-of-our-earth-the-conquest-of-the-land-117297.html
Overview:
Editions/Publications:
- Unknown. If, November 1969 (Unknown, Willy Ley, Universal Publishing & Distributing Corporation, $0.60, 164 pages, digest, MAGAZINE)
- Unknown. If, December 1969 (UK) (Unknown, Willy Ley, Universal-Tandem Publishing Company Ltd., 5/-, 164 pages, digest, MAGAZINE)