एपीए उद्धरण

Hughes, D. (1996). Environmental law (ed. 3.). Butterworths.

शिकागो स्टाइल उद्धरण

Hughes, David. Environmental Law. ed. 3. London: Butterworths, 1996.

एमएलए उद्धरण

Hughes, David. Environmental Law. ed. 3. Butterworths, 1996.