APA (7th ed.) Citation

Ratzlaff, C. J. (1936). The theory of free competition. Univ. of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Ratzlaff, Carl J. The Theory of Free Competition. Philadelphia: Univ. of Pennsylvania Press, 1936.

MLA (9th ed.) Citation

Ratzlaff, Carl J. The Theory of Free Competition. Univ. of Pennsylvania Press, 1936.

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