एपीए उद्धरण

CPRE. (1997). water a book of facts and activities.

शिकागो स्टाइल उद्धरण

CPRE. Water a Book of Facts and Activities. Chennai, C P R Environmental Education Centre, 1997.

एमएलए उद्धरण

CPRE. Water a Book of Facts and Activities. 1997.