एपीए उद्धरण

Lerche, I. (2001). Environmental risk analysis. New York, Ny: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Lerche, Ian. Environmental Risk Analysis. New York, Ny: McGraw-Hill, 2001.

एमएलए उद्धरण

Lerche, Ian. Environmental Risk Analysis. New York, Ny: McGraw-Hill, 2001.