APA (7th ed.) Citation

Thornbury, W. D. (2002). Principles of geomorphology (2nd ed.). CBS Publishers.

Chicago Style (17th ed.) Citation

Thornbury, William D. Principles of Geomorphology. 2nd ed. New Delhi: CBS Publishers, 2002.

MLA (9th ed.) Citation

Thornbury, William D. Principles of Geomorphology. 2nd ed. CBS Publishers, 2002.

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