Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Crum, Howard Alvin, y Lewis E. Anderson. Mosses of Eastern North America. New York: Columbia University Press, 1981.

Cita MLA (9a ed.)

Crum, Howard Alvin, y Lewis E. Anderson. Mosses of Eastern North America. Columbia University Press, 1981.