Cita APA (7th ed.)

STRAHLER, A. N., & STRAHLER, A. H. (1978). Modern physical geography. John Wiley and Sons.

Cita Chicago (17th ed.)

STRAHLER, Arthur N., i Alan H. STRAHLER. Modern Physical Geography. New York: John Wiley and Sons, 1978.

Cita MLA (9th ed.)

STRAHLER, Arthur N., i Alan H. STRAHLER. Modern Physical Geography. John Wiley and Sons, 1978.