The Werewolf Principle

From Author Wars - https://authorwars.com/publications/the-werewolf-principle-270846.html

Overview:

Title: The Werewolf Principle
Author: Clifford D. Simak
Year: 1967
Publisher: G. P. Putnam's Sons
Price: $3.95
Pages: 216
Binding: Hardcover
Type: Novel
Title Reference: The Werewolf Principle
Notes:
• No statement of printing on the copyright page. [Currey]
• Since the cover is the same as the SFBC edition the artwork is mistakenly credited to "Richard G. Powers"; only Powers is on the cover. • Date code, 6709, on front flap of Archive.org copy.