APA (7th ed.) Citation

Strahler, A. N. (1987). Modern physical geography (3rd ed.). John Wiley and Sons.

Chicago Style (17th ed.) Citation

Strahler, Arthur Newell. Modern Physical Geography. 3rd ed. New York: John Wiley and Sons, 1987.

MLA (9th ed.) Citation

Strahler, Arthur Newell. Modern Physical Geography. 3rd ed. John Wiley and Sons, 1987.