APA (7th ed.) Citation

Strahler, A. N., & Strahler, A. H. (1976). Elements of physical geography. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Strahler, Arthur Newell, and Allan H. Strahler. Elements of Physical Geography. New York: John Wiley & Sons, 1976.

MLA (9th ed.) Citation

Strahler, Arthur Newell, and Allan H. Strahler. Elements of Physical Geography. John Wiley & Sons, 1976.