Red Planet

From Author Wars - https://authorwars.com/publications/red-planet-357656.html

Overview:

Title: Red Planet
Author: Robert A. Heinlein
Year: Unknown
ISBN-10: 0330107127
Publisher: Pan Books
Price: £1.50
Pages: 173
Binding: Paperback
Type: Novel
Title Reference: Red Planet
Notes: 5th Printing per numberline. 3rd Printing was 1973, 2nd Printing was 1971, First printing was 1967.
Cover and spine as by "Robert Heinlein", copyright page as "Robert A. Heinlein".
Artist not credited, no signature found.