APA (7th ed.) Citation

Foster, R. J. 1. A. 1. (1991). Historical geology. Macmillan Collier Macmillan.

Chicago Style (17th ed.) Citation

Foster, Robert J. 1929 Apr. 19-. Historical Geology. New York, Toronto: Macmillan Collier Macmillan, 1991.

MLA (9th ed.) Citation

Foster, Robert J. 1929 Apr. 19-. Historical Geology. Macmillan Collier Macmillan, 1991.