APA

Soars J., Soars L. & Sayer M. (2011). New Headway. Pre-Intermediate. Oxford: Oxford University Press.

Chicago

Soars J, Soars L and Sayer M. 2011. New Headway. Pre-Intermediate. Oxford: Oxford University Press.

Harvard

Soars J., Soars L. and Sayer M. (2011). New Headway. Pre-Intermediate. Oxford: Oxford University Press.

MLA

Soars J, Soars L and Sayer M. New Headway. Pre-Intermediate. Oxford: Oxford University Press. 2011.