Cita APA (7a ed.)

Strahler, A. N., & Strahler, A. H. (1987). Modern physical geography (3rd ed.). J. Wiley.

Cita Chicago Style (17a ed.)

Strahler, Arthur Newell, y Alan H. Strahler. Modern Physical Geography. 3rd ed. New York: J. Wiley, 1987.

Cita MLA (8a ed.)

Strahler, Arthur Newell, y Alan H. Strahler. Modern Physical Geography. 3rd ed. J. Wiley, 1987.