Soars, J., & Soars, L. (2000). New headway English course. Oxford University Press.
Cita Chicago Style (17a ed.)Soars, John, y Liz Soars. New Headway English Course. New York: Oxford University Press, 2000.
Cita MLA (8a ed.)Soars, John, y Liz Soars. New Headway English Course. Oxford University Press, 2000.
Precaución: Estas citas no son 100% exactas.