APA (7th ed.) Citation
Soars, J., & Soars, L. (2004). New Headway English Course: Pre-Intermediate. Student' s Book (13. vyd.). Oxford University Press.
Chicago Style (17th ed.) Citation
Soars, John, and Liz Soars. New Headway English Course: Pre-Intermediate. Student' S Book. 13. vyd. Oxford: Oxford University Press, 2004.
MLA (9th ed.) Citation
Soars, John, and Liz Soars. New Headway English Course: Pre-Intermediate. Student' S Book. 13. vyd. Oxford University Press, 2004.
Warning: These citations may not always be 100% accurate.