Cita APA (7a ed.)
Bowler, B., & Parminter, S. (2003). New Headway Pronunciation Course: Pre-Intermediate (3. vyd.). Oxford University Press.
Cita Chicago Style (17a ed.)
Bowler, Bill, y Sue Parminter. New Headway Pronunciation Course: Pre-Intermediate. 3. vyd. Oxford: Oxford University Press, 2003.
Cita MLA (9a ed.)
Bowler, Bill, y Sue Parminter. New Headway Pronunciation Course: Pre-Intermediate. 3. vyd. Oxford University Press, 2003.
Precaución: Estas citas no son 100% exactas.