Cita APA

Putnam, W. C., Birkeland, P. W., & Larson, E. E. (1978). Putnam's Geology (3d ed.). New York: Oxford University Press.

Citación estilo Chicago

Putnam, William Clement, Peter W. Birkeland, y Edwin E. Larson. Putnam's Geology. 3d ed. New York: Oxford University Press, 1978.

Cita MLA

Putnam, William Clement, Peter W. Birkeland, y Edwin E. Larson. Putnam's Geology. 3d ed. New York: Oxford University Press, 1978.