APA (7th ed.) Citation

Strahler, A. N. (1975). Physical geography (4. edition.). Wiley.

Chicago Style (17th ed.) Citation

Strahler, Arthur Newell. Physical Geography. 4. edition. New York ; London ; Sydney ; Toronto: Wiley, 1975.

MLA (9th ed.) Citation

Strahler, Arthur Newell. Physical Geography. 4. edition. Wiley, 1975.