APA (7th ed.) Citation

Foster, R. J. 1. A. 1. (1983). General geology (4th ed.). Merrill.

Chicago Style (17th ed.) Citation

Foster, Robert J. 1929 Apr. 19-. General Geology. 4th ed. Columbus: Merrill, 1983.

MLA (9th ed.) Citation

Foster, Robert J. 1929 Apr. 19-. General Geology. 4th ed. Merrill, 1983.