APA (7th ed.) Citation

Wilder, R. P., & Phelps, G. S. (1918). The Red triangle in the changing nations. Association Press.

Chicago Style (17th ed.) Citation

Wilder, Robert Parmelee, and G. Sidney Phelps. The Red Triangle in the Changing Nations. New York: Association Press, 1918.

MLA (9th ed.) Citation

Wilder, Robert Parmelee, and G. Sidney Phelps. The Red Triangle in the Changing Nations. Association Press, 1918.