APA (7th ed.) Citation

Cain, S. A. (1944). Foundations of plant geography. Hafner Press.

Chicago Style (17th ed.) Citation

Cain, Stanley Adair. Foundations of Plant Geography. New York: Hafner Press, 1944.

MLA (9th ed.) Citation

Cain, Stanley Adair. Foundations of Plant Geography. Hafner Press, 1944.