May P. Peter. (2009). Knockout. First Certificate: Student's book. Oxford, Oxford University Press, 2009.
Chicago Style (17th ed.) CitationMay P. Peter. Knockout. First Certificate: Student's Book. Oxford, Oxford University Press, 2009, 2009.
MLA (9th ed.) CitationMay P. Peter. Knockout. First Certificate: Student's Book. Oxford, Oxford University Press, 2009, 2009.
Warning: These citations may not always be 100% accurate.