Cita APA

Gude, K., & Duckworth, M. (2002). Proficiency masterclass: Exam practice workbook : with key. Oxford: Oxford University Press.

Citación estilo Chicago

Gude, Kathy, and Michael Duckworth. Proficiency Masterclass: Exam Practice Workbook : With Key. Oxford: Oxford University Press, 2002.

Cita MLA

Gude, Kathy, and Michael Duckworth. Proficiency Masterclass: Exam Practice Workbook : With Key. Oxford: Oxford University Press, 2002.

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