Cita APA (7a ed.)

Soars, J., & Soars, L. (2007). New Headway: Pre intermediate : class audio CDs (3a ed.). Oxford.

Cita Chicago Style (17a ed.)

Soars, John, y Liz Soars. New Headway: Pre Intermediate : Class Audio CDs. 3a ed. New York: Oxford, 2007.

Cita MLA (8a ed.)

Soars, John, y Liz Soars. New Headway: Pre Intermediate : Class Audio CDs. 3a ed. Oxford, 2007.