एपीए उद्धरण

Hancock, P. L., & Skinner, B. J. (2000). Oxford companion to the Earth. Oxford University Press.

शिकागो स्टाइल उद्धरण

Hancock, Paul Land, और Brian J. Skinner. Oxford Companion to the Earth. Oxford: Oxford University Press, 2000.

एमएलए उद्धरण

Hancock, Paul Land, और Brian J. Skinner. Oxford Companion to the Earth. Oxford University Press, 2000.