APA (7th ed.) Citation

Tryon, R. M. (1953). The ferns and fern allies of Wisconsin (2d ed.].). University of Wisconsin Press.

Chicago Style (17th ed.) Citation

Tryon, Rolla M. The Ferns and Fern Allies of Wisconsin. 2d ed.]. Madison: University of Wisconsin Press, 1953.

MLA (9th ed.) Citation

Tryon, Rolla M. The Ferns and Fern Allies of Wisconsin. 2d ed.]. University of Wisconsin Press, 1953.