APA (7th ed.) Citation

Holmes, A., & Duff, P. M. D. (1994). Holmes' Principles of Physical Geology (4th ed.). Chapman & Hall / ELBS.

Chicago Style (17th ed.) Citation

Holmes, Arthur, and P. McL. D. Duff. Holmes' Principles of Physical Geology. 4th ed. London: Chapman & Hall / ELBS, 1994.

MLA (9th ed.) Citation

Holmes, Arthur, and P. McL. D. Duff. Holmes' Principles of Physical Geology. 4th ed. Chapman & Hall / ELBS, 1994.

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