Clark, John Grahame Douglas Prehistoric societies / by Grahame Clark and Stuart Piggott - 1st American ed. - New York : London : Knopf ; Hutshinson, 1965 - 356 p. : ill., maps ; 22 cm. - The history of Human society ; . Includes bibliographical references (p. 333-340) Subjects--Topical Terms: Man, PrehistoricSociety, Primitive Dewey Class. No.: 571