एपीए उद्धरण

Duke, C. V., & Williams, C. D. (2008). Chemistry for environmental and earth sciences. CRC Press.

शिकागो स्टाइल उद्धरण

Duke, Catherine V.A, और Craig D. Williams. Chemistry for Environmental and Earth Sciences. Boca Raton: CRC Press, 2008.

एमएलए उद्धरण

Duke, Catherine V.A, और Craig D. Williams. Chemistry for Environmental and Earth Sciences. CRC Press, 2008.