APA (7th ed.) Citation

Crum, H. A. (1981). Mosses of Eastern North America. Columbia University Press.

Chicago Style (17th ed.) Citation

Crum, Howard A. Mosses of Eastern North America. New York: Columbia University Press, 1981.

MLA (9th ed.) Citation

Crum, Howard A. Mosses of Eastern North America. Columbia University Press, 1981.