APA (7th ed.) Citation

(1981). Origin and chemistry of petroleum: Proceedings of the Third Annual Karcher Symposium, Oklahoma, May 4, 1979. Pergamon Press.

Chicago Style (17th ed.) Citation

Origin and Chemistry of Petroleum: Proceedings of the Third Annual Karcher Symposium, Oklahoma, May 4, 1979. Oxford: Pergamon Press, 1981.

MLA (9th ed.) Citation

Origin and Chemistry of Petroleum: Proceedings of the Third Annual Karcher Symposium, Oklahoma, May 4, 1979. Pergamon Press, 1981.