एपीए उद्धरण

Joseph, B. (2005). Environmental studies. Tata McGraw Hill.

शिकागो स्टाइल उद्धरण

Joseph, Benny. Environmental Studies. New Delhi: Tata McGraw Hill, 2005.

एमएलए उद्धरण

Joseph, Benny. Environmental Studies. Tata McGraw Hill, 2005.