APA citiranje

Michael Duckworth. (2000). Countdown to first certificate ( Workbook ). Oxford: Oxford Univ. Press.

Trích dẫn kiểu Chicago

Michael Duckworth. Countdown to First Certificate ( Workbook ). Oxford: Oxford Univ. Press, 2000.

MLA citiranje

Michael Duckworth. Countdown to First Certificate ( Workbook ). Oxford: Oxford Univ. Press, 2000.

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