Passport to Eternity
From Author Wars - https://authorwars.com/books/passport-to-eternity-847537.html
Editions/Publications:
- Unknown. The Most Thrilling Science Fiction Ever Told, Spring 1968 (Unknown, Adkins, Ultimate Publishing Co., Inc., $0.50, 132 pages, digest, MAGAZINE)
- Unknown. Amazing Stories, June 1962 (Unknown, Adkins, Ziff-Davis Publishing Company, $0.35, 148 pages, digest, MAGAZINE)