एपीए उद्धरण

Hill, M. K. (2005). Understanding environmental pollution. Cambridge University Press.

शिकागो स्टाइल उद्धरण

Hill, Marquita K. Understanding Environmental Pollution. New Delhi: Cambridge University Press, 2005.

एमएलए उद्धरण

Hill, Marquita K. Understanding Environmental Pollution. Cambridge University Press, 2005.