Clark, J. G. D., & Piggett, S. (1965). Prehistoric societies. Knopf.
Chicago Style (17th ed.) CitationClark, John Grahame Douglas, and Stuart Piggett. Prehistoric Societies. New York: Knopf, 1965.
MLA (9th ed.) CitationClark, John Grahame Douglas, and Stuart Piggett. Prehistoric Societies. Knopf, 1965.
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