एपीए उद्धरण

Sinha, R. K. (1994). Environmental science: Hazardous gas and hazardous waste.

शिकागो स्टाइल उद्धरण

Sinha, R K. Environmental Science: Hazardous Gas and Hazardous Waste. New Delh, Commonwealth Publishers, 1994.

एमएलए उद्धरण

Sinha, R K. Environmental Science: Hazardous Gas and Hazardous Waste. 1994.