Duckworth, M. (2009). Countdown to first certificate: (Student's book). Oxford: Oxford University Press.
Chicago Style CitationDuckworth, Michael. Countdown to First Certificate: (Student's Book). Oxford: Oxford University Press, 2009.
MLA CitationDuckworth, Michael. Countdown to First Certificate: (Student's Book). Oxford: Oxford University Press, 2009.
Warning: These citations may not always be 100% accurate.