APA (7th ed.) Citation

Holmes, A. (1978). Principles of physical geology. E.L.B.S..

Chicago Style (17th ed.) Citation

Holmes, Arthur. Principles of Physical Geology. London: E.L.B.S., 1978.

MLA (9th ed.) Citation

Holmes, Arthur. Principles of Physical Geology. E.L.B.S., 1978.