Sinking Continents
From Author Wars - https://authorwars.com/books/sinking-continents-128407.html
Overview:
- Title: Sinking Continents
- Author: J. R. Marks
- Year: 1950
- Type: Essays
Editions/Publications:
- Unknown. Amazing Stories, September 1950 (Unknown, J. R. Marks, Ziff-Davis Publishing Company, $0.25, 180 pages, pulp, MAGAZINE)
- Unknown. Science Fiction Greats, Winter 1969 (Unknown, J. R. Marks, Ultimate Publishing Co., Inc., $0.50, 132 pages, digest, MAGAZINE)
- Unknown. Amazing Stories Quarterly (Reissue), Spring 1951 (Unknown, J. R. Marks, Ziff-Davis, $0.50, pulp, MAGAZINE)