APA (7th ed.) Citation

Soars, J., & Soars, L. (1997). Headway: Teacher's book (12th impression.). Oxford University Press.

Chicago Style (17th ed.) Citation

Soars, John, and Liz Soars. Headway: Teacher's Book. 12th impression. Oxford: Oxford University Press, 1997.

MLA (8th ed.) Citation

Soars, John, and Liz Soars. Headway: Teacher's Book. 12th impression. Oxford University Press, 1997.