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引文May P. Peter. Knockout. First Certificate: Student's Book. Oxford, Oxford University Press, 2009, 2009.
警告：這些引文格式不一定是100％准確.