APA (7th ed.) Citation

Heilperin, M. A. (1947). The trade of nations. Knopf.

Chicago Style (17th ed.) Citation

Heilperin, Michael A. The Trade of Nations. New York: Knopf, 1947.

MLA (9th ed.) Citation

Heilperin, Michael A. The Trade of Nations. Knopf, 1947.

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