APA (7th ed.) Citation

Clark, G. L. (1966). The Encyclopedia of chemistry (2d ed.). Reinhold Pub. Corp..

Chicago Style (17th ed.) Citation

Clark, George L. The Encyclopedia of Chemistry. 2d ed. New York: Reinhold Pub. Corp., 1966.

MLA (9th ed.) Citation

Clark, George L. The Encyclopedia of Chemistry. 2d ed. Reinhold Pub. Corp., 1966.