APA (7th ed.) Citation

Swartz, C. L. (1927). What is mutualism? Vanguard Press.

Chicago Style (17th ed.) Citation

Swartz, Clarence Lee. What Is Mutualism? New York: Vanguard Press, 1927.

MLA (9th ed.) Citation

Swartz, Clarence Lee. What Is Mutualism? Vanguard Press, 1927.

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