APA

Falla T., Soars L. & Soars J. (2009). New Headway English Course. Beginner. Oxford: Oxford University Press.

Chicago

Falla T, Soars L and Soars J. 2009. New Headway English Course. Beginner. Oxford: Oxford University Press.

Harvard

Falla T., Soars L. and Soars J. (2009). New Headway English Course. Beginner. Oxford: Oxford University Press.

MLA

Falla T, Soars L and Soars J. New Headway English Course. Beginner. Oxford: Oxford University Press. 2009.