APA aipamena

Levin, S. A. (2001). Encyclopedia of biodiversity. Academic Press.

Chicago Style aipamena

Levin, Simon A. Encyclopedia of Biodiversity. San Diego: Academic Press, 2001.

MLA aipamena

Levin, Simon A. Encyclopedia of Biodiversity. Academic Press, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.