A Princess of Mars

From Author Wars - https://authorwars.com/publications/a-princess-of-mars-649013.html

Overview:

Title: A Princess of Mars
Author: Edgar Rice Burroughs
Year: Unknown
ISBN-10: 0345331389
Publisher: Del Rey / Ballantine
Price: $6.50
Pages: 159
Binding: Paperback
Type: Novel
Title Reference: A Princess of Mars
Notes: 41st printing per number line: "OPM 42 41." "First Ballantine Books Edition: January 1963", "First Canadian Printing: February 1963". "Cover art by Michael Whelan", unsigned. $9.99 in Canada. Cover art modified from other editions to eliminate 'gun handle' on stairs.