APA (7th ed.) Citation

Taylor, F. M. (1925). Principles of economics (9th ed.). Ronald Press.

Chicago Style (17th ed.) Citation

Taylor, Fred Manville. Principles of Economics. 9th ed. New York: Ronald Press, 1925.

MLA (9th ed.) Citation

Taylor, Fred Manville. Principles of Economics. 9th ed. Ronald Press, 1925.