The Tenth World

From Author Wars - https://authorwars.com/books/the-tenth-world-958539.html

Overview:

Title: The Tenth World
Author: Jack Gaughan
Year: 1966
Type: Interior Art

Editions/Publications:

Unknown. The Planeteers / The Ultimate Weapon (Unknown, Jack Gaughan, Ace Books, $0.50, 150+106 pages, dos, Omnibus)