Cita APA

Fenneman, N. M. (1931). Physiography of western United States. McGraw-Hill.

Citación estilo Chicago

Fenneman, Nevin M. Physiography of Western United States. New York: McGraw-Hill, 1931.

Cita MLA

Fenneman, Nevin M. Physiography of Western United States. New York: McGraw-Hill, 1931.

Precaución: Estas citas no son 100% exactas.