एपीए उद्धरण

(2009). Environmental law handbook (20th ed.). Government Institutes.

शिकागो स्टाइल उद्धरण

Environmental Law Handbook. 20th ed. Lanham: Government Institutes, 2009.

एमएलए उद्धरण

Environmental Law Handbook. 20th ed. Government Institutes, 2009.