Back to the Stone Age
From Author Wars - https://authorwars.com/publications/back-to-the-stone-age-648837.html
Overview:
- Title: Back to the Stone Age
- Author: Edgar Rice Burroughs
- Year: Unknown
- ISBN-10: 0441046371
- Publisher: Ace Books
- Price: $2.25
- Pages: 251
- Binding: Paperback
- Type: Novel
- Title Reference: Back to the Stone Age
- Notes: No printing history.
"Cover painting by Frank Frazetta".
"Original copyright for 1936, 1937."
Locus #253 (February 1982) has Ninth Ace printing - incorrectly. Likely the twelfth.