Einzig, Paul 1897-1973. Primitive money : in its ethnological, historical, and economic aspects / Paul Einzig - 2d ed., rev. and enl. - Oxford ; New York : Pergamon Press, 1966. - xvii, 557 p. ; 23 cm. Includes bibliography and index. Subjects--Topical Terms: Money--Origin. Dewey Class. No.: 332.401 / EIP