APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Strahler, Arthur Newell, and Alan H. Strahler. Modern Physical Geography. 3. ed. New York u.a: Wiley, 1987.

MLA (9th ed.) Citation

Strahler, Arthur Newell, and Alan H. Strahler. Modern Physical Geography. 3. ed. Wiley, 1987.