एपीए उद्धरण

Hampel, C. A., & Hawley, G. G. (1973). encyclopaedia of chemistry (3rd ed.). Van Nostrand Reinhold Company.

शिकागो स्टाइल उद्धरण

Hampel, Clifford A., और Gessner G. Hawley. Encyclopaedia of Chemistry. 3rd ed. New York: Van Nostrand Reinhold Company, 1973.

एमएलए उद्धरण

Hampel, Clifford A., और Gessner G. Hawley. Encyclopaedia of Chemistry. 3rd ed. Van Nostrand Reinhold Company, 1973.