APA aipamena

Watson,R.T. (2011). Global Biodiversity assessment. Cambridge University Press.

Chicago Style aipamena

Watson,R.T. Global Biodiversity Assessment. UK: Cambridge University Press, 2011.

MLA aipamena

Watson,R.T. Global Biodiversity Assessment. Cambridge University Press, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.