The Many Worlds of Magnus Ridolph

From Author Wars - https://authorwars.com/books/the-many-worlds-of-magnus-ridolph-1908205.html

Overview:

Title: The Many Worlds of Magnus Ridolph
Author: Jack Gaughan
Year: 1966
Type: Cover Art

Editions/Publications:

Unknown. The Brains of Earth / The Many Worlds of Magnus Ridolph (Unknown, Jack Gaughan, Ace Books, $0.45, 108+146 pages, dos, Omnibus)