At the Earth's Core

From Author Wars - https://authorwars.com/publications/at-the-earths-core-201713.html

Overview:

Title: At the Earth's Core
Author: Edgar Rice Burroughs
Year: 1981
ISBN-10: 044103327X
Publisher: Ace Books
Price: $2.25
Pages: 210
Binding: Paperback
Type: Novel
Title Reference: At the Earth's Core
Notes:
• "This Ace printing: May 1981"; no number line • The artist is not credited, no visible signature on the artwork • The entire painting, with signature, is in The Fantastic Art of Frank Frazetta