Mark Irvine. (1999). Commercially speaking (Teacher's book). Oxford: Oxford Univ. Press.
Trích dẫn kiểu ChicagoMark Irvine. Commercially Speaking (Teacher's Book). Oxford: Oxford Univ. Press, 1999.
MLA citiranjeMark Irvine. Commercially Speaking (Teacher's Book). Oxford: Oxford Univ. Press, 1999.
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