APA-viite (7. p.)

Soars, J., & Soars, L. (1987). Headway: Student's book. Upper-intemediate. Oxford University Press.

Chicago-viite (17. p.)

Soars, John, ja Liz Soars. Headway: Student's Book. Upper-intemediate. Oxford: Oxford University Press, 1987.

MLA-viite (9. p.)

Soars, John, ja Liz Soars. Headway: Student's Book. Upper-intemediate. Oxford University Press, 1987.