Cita APA

Putnam, W. C. (1971). Geology (2a. ed.). New York: Oxford University.

Citación estilo Chicago

Putnam, William Clement. Geology. 2a. ed. New York: Oxford University, 1971.

Cita MLA

Putnam, William Clement. Geology. 2a. ed. New York: Oxford University, 1971.