On Conquered Earth

From Author Wars - https://authorwars.com/books/on-conquered-earth-770565.html

Overview:

Title: On Conquered Earth
Author: Gaughan
Year: 1967
Type: Interior Art

Editions/Publications:

Unknown. If, December 1967 (Unknown, Gaughan, Galaxy Publishing Corporation, $0.60, 164 pages, digest, MAGAZINE)