Cita APA

(1993). Headway Upper-immediate: (Student's book). Oxford: Oxford University Press.

Chicago Style Citation

Headway Upper-immediate: (Student's Book). Oxford: Oxford University Press, 1993.

Cita MLA

Headway Upper-immediate: (Student's Book). Oxford: Oxford University Press, 1993.

Atenció: Aquestes cites poden no estar 100% correctes.