एपीए उद्धरण

Hurley, W. D. (1971). Environmental legislation. Charles C. Thomas.

शिकागो स्टाइल उद्धरण

Hurley, William D. Environmental Legislation. Illinois: Charles C. Thomas, 1971.

एमएलए उद्धरण

Hurley, William D. Environmental Legislation. Charles C. Thomas, 1971.