David Starr, Space Ranger

From Author Wars - https://authorwars.com/publications/david-starr-space-ranger-695574.html

Overview:

Title: David Starr, Space Ranger
Author: Isaac Asimov
Year: Unknown
Publisher: Signet / New American Library
Price: $0.75
Pages: 144
Binding: Paperback
Type: Novel
Title Reference: David Starr, Space Ranger
Notes:
• Stated 3rd printing, no number line. • States "Isaac Asimov writing as Paul French" on the cover and title page • The artist is not credited, but his signature Pepper is visible. • The new introduction (author dated November 1970) describes changes in the knowledge of Mars since the novel was written. • Printed in the US