एपीए उद्धरण

(1993). Oxford illustrated encyclopedia: Vol.1 - The physical world. New York: Oxford Univ. Press.

शिकागो स्टाइल उद्धरण

Oxford Illustrated Encyclopedia: Vol.1 - The Physical World. New York: Oxford Univ. Press, 1993.

एमएलए उद्धरण

Oxford Illustrated Encyclopedia: Vol.1 - The Physical World. New York: Oxford Univ. Press, 1993.