APA (7th ed.) Zitazioa

Blalock, Z. a. Academic writing skills 3: Teacher's manual. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Blalock, Zachary[et al.]. Academic Writing Skills 3: Teacher's Manual. New York: Cambridge University Press.

MLA (9th ed.) Zitazioa

Blalock, Zachary[et al.]. Academic Writing Skills 3: Teacher's Manual. Cambridge University Press.