APA (7th ed.) Citation

Strahler, A. N. (1971). The earth sciences (2d ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Strahler, Arthur Newell. The Earth Sciences. 2d ed. New York: Harper & Row, 1971.

MLA (9th ed.) Citation

Strahler, Arthur Newell. The Earth Sciences. 2d ed. Harper & Row, 1971.