APA (7th ed.) Citation

Dunbar, C. O. (1949). Historical geology. J. Wiley.

Chicago Style (17th ed.) Citation

Dunbar, Carl O. Historical Geology. New York: J. Wiley, 1949.

MLA (9th ed.) Citation

Dunbar, Carl O. Historical Geology. J. Wiley, 1949.

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