Satan's World

From Author Wars - https://authorwars.com/publications/satans-world-201093.html

Overview:

Title: Satan's World
Author: Poul Anderson
Year: 1977
ISBN-10: 0425033619
Publisher: Berkley Medallion
Price: $1.50
Pages: 220
Binding: Paperback
Type: Novel
Title Reference: Satan's World
Notes:
"Berkley Medallion Edition, April, 1977" Printing not stated, no number line Cover artist not credited. Signature is visible on the lower right, looks like an "S in a box" identfied as Rick Sternbach [cropped on some copies] Printed in the US