APA Edition Citation

Thornbury, W. D. (2004). Principles of Geomorphology (2.).

Chicago Edition Citation

Thornbury, William D. Principles of Geomorphology. 2. New Delhi, New Age Publs, 2004.

MLA Edition Citation

Thornbury, William D. Principles of Geomorphology. 2. 2004.

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