Cita APA (7a ed.)

Strahler, A. N. (1975). Physical geography. John Wiley.

Cita Chicago Style (17a ed.)

Strahler, Arthur N. Physical Geography. New York: John Wiley, 1975.

Cita MLA (9a ed.)

Strahler, Arthur N. Physical Geography. John Wiley, 1975.