Cita APA

Strahler, A. H., & Strahler, A. N. (2003). Introducing physical geography: Version 1.0 (3rd ed.). New York: Wiley.

Citación estilo Chicago

Strahler, Alan H., y Arthur Newell Strahler. Introducing Physical Geography: Version 1.0. 3rd ed. New York: Wiley, 2003.

Cita MLA

Strahler, Alan H., y Arthur Newell Strahler. Introducing Physical Geography: Version 1.0. 3rd ed. New York: Wiley, 2003.