Cita APA (7th ed.)

Clark, G. L. (1966). The Encyclopedia of chemistry (Second edition.). Reinhold Publishing Corp.

Cita Chicago (17th ed.)

Clark, George L. The Encyclopedia of Chemistry. Second edition. New York: Reinhold Publishing Corp, 1966.

Cita MLA (9th ed.)

Clark, George L. The Encyclopedia of Chemistry. Second edition. Reinhold Publishing Corp, 1966.