APA

Putnam W. C., . (1964). Geology. New York: Oxford University Press.

Chicago

Putnam William Clement, . 1964. Geology. New York: Oxford University Press.

Harvard

Putnam W. C., . (1964). Geology. New York: Oxford University Press.

MLA

Putnam William Clement, . Geology. New York: Oxford University Press. 1964.