APA (7th ed.) Citation

Heilperin, M. A. (1946). The trade of nations. A.A. Knopf.

Chicago Style (17th ed.) Citation

Heilperin, Michael Angelo. The Trade of Nations. New York: A.A. Knopf, 1946.

MLA (9th ed.) Citation

Heilperin, Michael Angelo. The Trade of Nations. A.A. Knopf, 1946.

Warning: These citations may not always be 100% accurate.