APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.