एपीए उद्धरण

Singer,Ronald. (1999). Encyclopedia of paleontology: A- L. Fitzroy Dearborn Publishers.

शिकागो स्टाइल उद्धरण

Singer,Ronald. Encyclopedia of Paleontology: A- L. Chicago: Fitzroy Dearborn Publishers, 1999.

एमएलए उद्धरण

Singer,Ronald. Encyclopedia of Paleontology: A- L. Fitzroy Dearborn Publishers, 1999.