The Puppet Masters

From Author Wars - https://authorwars.com/publications/the-puppet-masters-75978.html

Overview:

Title: The Puppet Masters
Author: Robert A. Heinlein
Year: 1969
Publisher: Signet / New American Library of Canada
Price: C$0.75
Pages: 175
Binding: Paperback
Type: Novel
Title Reference: The Puppet Masters
Notes:
- Printing history on copyright page:
  - First Printing, August, 1953
  - Second Printing, November, 1963
  - Third Printing, August, 1967
  - Fourth Printing, January, 1969
- No number line
- Above history is for Canadian printings only
- The artist is not credited, no visible signature; credit from the artist's website gallery
- Cover printed in the US, book in Canada