APA Citation

Thornbury William D. (1969). Principles of geomormhology. New York: John Wiley Eastern.

Chicago Style Citation

Thornbury William D. Principles of Geomormhology. New York: John Wiley Eastern, 1969.

MLA Citation

Thornbury William D. Principles of Geomormhology. New York: John Wiley Eastern, 1969.

Warning: These citations may not always be 100% accurate.