APA (7th ed.) Zitazioa

Spellerberg, I. F. (1991). Monitoring ecological change. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Spellerberg, Ian F. Monitoring Ecological Change. Cambridge: Cambridge University Press, 1991.

MLA (9th ed.) Zitazioa

Spellerberg, Ian F. Monitoring Ecological Change. Cambridge University Press, 1991.