Soars John & Hughes, S. (2019). Headway: Pre-intermediate Teacher's Guide (quinta edición.). Oxford University Press.
Chicago Style (17th ed.) CitationSoars John and Stacy Hughes. Headway: Pre-intermediate Teacher's Guide. quinta edición. Oxford, United Kingdom: Oxford University Press, 2019.
MLA (9th ed.) CitationSoars John and Stacy Hughes. Headway: Pre-intermediate Teacher's Guide. quinta edición. Oxford University Press, 2019.
Warning: These citations may not always be 100% accurate.