Cunningham, S., & Bowler, B. (2001). New headway pronunciation course: Intermediate [CD ROM]. Oxford University Press.
Cita Chicago Style (17a ed.)Cunningham, Sarah, y Bill Bowler. New Headway Pronunciation Course: Intermediate [CD ROM]. Oxford: Oxford University Press, 2001.
Cita MLA (9a ed.)Cunningham, Sarah, y Bill Bowler. New Headway Pronunciation Course: Intermediate [CD ROM]. Oxford University Press, 2001.
Precaución: Estas citas no son 100% exactas.