THE WEREWOLF PRINCIPLE
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 // Clifford SimakCover // Ian MillerPublisher // Pan (1977) #scifi#sci-fi#science fiction#book#books#book cover#cover#cover art#vintage#retro#classic#design#graphic design#illustration#pulp#paperback#bookshop #the space merchants #space merchants#clifford simak#ian miller#pan#1977#1970s#70s