Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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