APA (7th ed.) Citation

Strahler, A. (1998). Introducing physical geography (2nd ed.). John Wiley and Sons.

Chicago Style (17th ed.) Citation

Strahler, Alan. Introducing Physical Geography. 2nd ed. New York: John Wiley and Sons, 1998.

MLA (9th ed.) Citation

Strahler, Alan. Introducing Physical Geography. 2nd ed. John Wiley and Sons, 1998.