APA aipamena

Spilsbury, L. (2010). Wonderful Ecosystems. Oxford: Oxford University Press.

Chicago Style aipamena

Spilsbury, Louise. Wonderful Ecosystems. Oxford: Oxford University Press, 2010.

MLA aipamena

Spilsbury, Louise. Wonderful Ecosystems. Oxford: Oxford University Press, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.