APA (7th ed.) Citation

Duff, P. M. D., & Holmes, A. (1993). Holmes' principles of physical geology (4th ed.). Chapman & Hall.

Chicago Style (17th ed.) Citation

Duff, P. McL. D., and Arthur Holmes. Holmes' Principles of Physical Geology. 4th ed. London: Chapman & Hall, 1993.

MLA (9th ed.) Citation

Duff, P. McL. D., and Arthur Holmes. Holmes' Principles of Physical Geology. 4th ed. Chapman & Hall, 1993.

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