Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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