Citazione Stile APA (7a Edizione)

Soars, L. &. J. (2019). Headway: Beginner teacher's guide/ (Fifth edition.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Soars, Liz & John. Headway: Beginner Teacher's Guide/. Fifth edition. UK: Oxford University Press, 2019.

Citatione MLA (9a ed.)

Soars, Liz & John. Headway: Beginner Teacher's Guide/. Fifth edition. Oxford University Press, 2019.