Cita APA

Soars, L., & Soars, J. (1990). Headway Elementary: Student"s Book. Oxford: Oxford University Press.

Chicago Style Citation

Soars, Liz, i John Soars. Headway Elementary: Student"s Book. Oxford: Oxford University Press, 1990.

Cita MLA

Soars, Liz, i John Soars. Headway Elementary: Student"s Book. Oxford: Oxford University Press, 1990.

Atenció: Aquestes cites poden no estar 100% correctes.