APA (7th ed.) Citation

Martin, J. J., & May, P. P. (2007). Knockout first certificate: Workbook with key and tapescripts. University Press.

Chicago Style (17th ed.) Citation

Martin, J. Jackie, and P. Peter May. Knockout First Certificate: Workbook with Key and Tapescripts. Oxford: University Press, 2007.

MLA (8th ed.) Citation

Martin, J. Jackie, and P. Peter May. Knockout First Certificate: Workbook with Key and Tapescripts. University Press, 2007.