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. 24 cm. Bibliography: p. 521-541. Subjects--Topical Terms: Money--Origin. Dewey Class. No.: 332.4 / EIP 1966