Cita APA (7th ed.)

STRAHLER, A. N. (1981). Physical geology. Harper and Row.

Cita Chicago (17th ed.)

STRAHLER, Arthur Newell. Physical Geology. New York: Harper and Row, 1981.

Cita MLA (9th ed.)

STRAHLER, Arthur Newell. Physical Geology. Harper and Row, 1981.