The Werewolf Principle By Clifford D. Simak (1967, Paperback) VTG First Printing

The Werewolf Principle Clifford Simak

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The Werewolf Principle Clifford Simak 1st Daw Printing First #471 1982 vintage

The Werewolf

Clifford D. Simak The Werewolf Principle Hardcover Sci-Fi Novel Dust Jacket