May, P. (1999). Knockout first certificate: Student's book (5th ed.). Oxford: Oxford University Press.
Chicago Style CitationMay, Peter. Knockout First Certificate: Student's Book. 5th ed. Oxford: Oxford University Press, 1999.
MLA CitationMay, Peter. Knockout First Certificate: Student's Book. 5th ed. Oxford: Oxford University Press, 1999.
Warning: These citations may not always be 100% accurate.