APA (7th ed.) Citation

Degens, E. T., & Ross, D. A. (1974). The Black Sea--geology, chemistry, and biology. American Association of Petroleum Geologists.

Chicago Style (17th ed.) Citation

Degens, Egon T., and David A. Ross. The Black Sea--geology, Chemistry, and Biology. Tulsa, Okla.: American Association of Petroleum Geologists, 1974.

MLA (9th ed.) Citation

Degens, Egon T., and David A. Ross. The Black Sea--geology, Chemistry, and Biology. American Association of Petroleum Geologists, 1974.