Cita APA (7a ed.)

Strahler, A. N. (1976). Principles of earth science. Harper & Row.

Cita Chicago Style (17a ed.)

Strahler, Arthur Newell. Principles of Earth Science. New York: Harper & Row, 1976.

Cita MLA (9a ed.)

Strahler, Arthur Newell. Principles of Earth Science. Harper & Row, 1976.