APA (7th ed.) Citation

Thornbury, W. D. (1954). Principles of Geomorphology. John Wiley Sons.

Chicago Style (17th ed.) Citation

Thornbury, William D. Principles of Geomorphology. John Wiley Sons, 1954.

MLA (8th ed.) Citation

Thornbury, William D. Principles of Geomorphology. John Wiley Sons, 1954.

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