Cita APA

(1991). Headway teacher's book: Pre-intermediate. New York 0: Oxford University Press.

Chicago Style Citation

Headway Teacher's Book: Pre-intermediate. New York 0: Oxford University Press, 1991.

Cita MLA

Headway Teacher's Book: Pre-intermediate. New York 0: Oxford University Press, 1991.

Atenció: Aquestes cites poden no estar 100% correctes.