Cita APA

Bowler, B., & Parminter, S. (2003). New headway pronunciation course: Pre-intermediate. Oxford: Oxford University Press.

Citación estilo Chicago

Bowler, Bill, and Sue Parminter. New Headway Pronunciation Course: Pre-intermediate. Oxford: Oxford University Press, 2003.

Cita MLA

Bowler, Bill, and Sue Parminter. New Headway Pronunciation Course: Pre-intermediate. Oxford: Oxford University Press, 2003.