| Einzig, Paul. PRIMITIVE MONEY IN ITS ETHNOLOGICAL, HISTORICAL
AND ECONOMIC ASPECTS. 2nd ed. Oxford: Pergamon Press, 1966.
Herskovits, Melville J. ECONOMIC ANTHROPOLOGY. New York: 1952. Opitz, Charles J. ODD AND CURIOUS MONEY: DESCRIPTIONS AND VALUES. 2nd ed. Ocala, FL: First Impressions Printing, 1991. Quiggin, Alison Hingston. A SURVEY OF PRIMITIVE MONEY: THE BEGINNINGS OF CURRENCY. Reprint. London: Spink & Son, 1978. Taxay, Don. MONEY OF THE AMERICAN INDIANS AND OTHER PRIMITIVE CURRENCIES OF THE AMERICAS. New York: Nummus Press, 1970. |