APA (7th ed.) Citation

Tugwell, R. G., & Copeland, M. A. (1924). The trend of economics. A.A. Knopf.

Chicago Style (17th ed.) Citation

Tugwell, Rexford Guy, and Morris Albert Copeland. The Trend of Economics. New York: A.A. Knopf, 1924.

MLA (9th ed.) Citation

Tugwell, Rexford Guy, and Morris Albert Copeland. The Trend of Economics. A.A. Knopf, 1924.