APA (7th ed.) Zitazioa

Collins, M. (1984). Urban ecology: A teacher's resource book. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Collins, Martin. Urban Ecology: A Teacher's Resource Book. Cambridge: Cambridge University Press, 1984.

MLA (9th ed.) Zitazioa

Collins, Martin. Urban Ecology: A Teacher's Resource Book. Cambridge University Press, 1984.