Richards, J. C. (2012). Tactics for listening expanding pack A (CD1: Units 1-8). Oxford: Oxford Univ. Press.
Trích dẫn kiểu ChicagoRichards, Jack C. Tactics for Listening Expanding Pack A (CD1: Units 1-8). Oxford: Oxford Univ. Press, 2012.
Deismireacht MLARichards, Jack C. Tactics for Listening Expanding Pack A (CD1: Units 1-8). Oxford: Oxford Univ. Press, 2012.
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