एपीए उद्धरण

Hill, M. K. (2005). Understanding environmental pollution (2nd.). CUP.

शिकागो स्टाइल उद्धरण

Hill, Marquita K. Understanding Environmental Pollution. 2nd. New Delhi: CUP, 2005.

एमएलए उद्धरण

Hill, Marquita K. Understanding Environmental Pollution. 2nd. CUP, 2005.