एपीए उद्धरण

Gaur,P.K. (2012). Textbook of environmental chemistry. Sonali.

शिकागो स्टाइल उद्धरण

Gaur,P.K. Textbook of Environmental Chemistry. New Delhi: Sonali, 2012.

एमएलए उद्धरण

Gaur,P.K. Textbook of Environmental Chemistry. Sonali, 2012.