APA (7th ed.) Citation

Clark, B. L. (1915). The occurrence of Oligocene in the Contra Costa Hills of middle California. University of California Press.

Chicago Style (17th ed.) Citation

Clark, Bruce L. The Occurrence of Oligocene in the Contra Costa Hills of Middle California. Berkeley, CA: University of California Press, 1915.

MLA (8th ed.) Citation

Clark, Bruce L. The Occurrence of Oligocene in the Contra Costa Hills of Middle California. University of California Press, 1915.