APA Alıntı

Thornbury, W. D. (1961). Principles of Geomorphology. Wiley.

Chicago Stili Alıntı

Thornbury, William D. Principles of Geomorphology. London: Wiley, 1961.

MLA Alıntı

Thornbury, William D. Principles of Geomorphology. Wiley, 1961.