APA (7th ed.) Citation

Gekker, R. F., Elias, M. K., & Moore, R. C. (1965). Introduction to paleoecology. American Elsevier Pub. Co..

Chicago Style (17th ed.) Citation

Gekker, Roman Fedorovich, Maxim K. Elias, and Raymond Cecil Moore. Introduction to Paleoecology. New York: American Elsevier Pub. Co., 1965.

MLA (8th ed.) Citation

Gekker, Roman Fedorovich, et al. Introduction to Paleoecology. American Elsevier Pub. Co., 1965.