The Puppet Masters

From Author Wars - https://authorwars.com/publications/the-puppet-masters-258014.html

Overview:

Title: The Puppet Masters
Author: Robert A. Heinlein
Year: Unknown
ISBN-10: 0451119649
Publisher: Signet
Price: $2.50
Pages: 175
Binding: Paperback
Type: Novel
Title Reference: The Puppet Masters
Notes: 30th printing of the Signet edition, as per number line.
ISBN on spine, Catalog number AE1964 on front cover and spine.
Artists signature visible on cover, no explicit cover credit.
Copyright page mentions 1979 copyright renewal; ad in rear of book lists _The Outcasts of Heaven Belt_ with catalog #084071 and price of $1.75. Verified publication of this title with price of $1.95 is dated Dec 1978. This printing must therefore be in 1978 or 1979.