एपीए उद्धरण

Beerling, D. (2008). Emerald planet: How plants changed earth's history. Oxford University Press.

शिकागो स्टाइल उद्धरण

Beerling, David. Emerald Planet: How Plants Changed Earth's History. Oxford: Oxford University Press, 2008.

एमएलए उद्धरण

Beerling, David. Emerald Planet: How Plants Changed Earth's History. Oxford University Press, 2008.