Gude K. Kathy & Duckworth M. Michael. (2002). Proficiency Masterclass: Exam Practice Workbook with key. New York, Oxford University Press, 2002.
Chicago Style (17th ed.) CitationGude K. Kathy and Duckworth M. Michael. Proficiency Masterclass: Exam Practice Workbook with Key. New York, Oxford University Press, 2002, 2002.
MLA (9th ed.) CitationGude K. Kathy and Duckworth M. Michael. Proficiency Masterclass: Exam Practice Workbook with Key. New York, Oxford University Press, 2002, 2002.
Warning: These citations may not always be 100% accurate.