Martin J. Jackie & May P. Peter. (2011). Knockout. First Certificate: Workbook with key and tapescripts. Oxford, Oxford University Press, 2011.
Chicago Style (17th ed.) CitationMartin J. Jackie and May P. Peter. Knockout. First Certificate: Workbook with Key and Tapescripts. Oxford, Oxford University Press, 2011, 2011.
MLA (9th ed.) CitationMartin J. Jackie and May P. Peter. Knockout. First Certificate: Workbook with Key and Tapescripts. Oxford, Oxford University Press, 2011, 2011.
Warning: These citations may not always be 100% accurate.