Dyfyniad APA

Cotton, D. (2011). Market Leader. Elementary Business English Course Book Practice File (New Edition.). VH-TT.

Dyfyniad Arddull Chicago

Cotton, David. Market Leader. Elementary Business English Course Book Practice File. New Edition. VH-TT, 2011.

Dyfyniad MLA

Cotton, David. Market Leader. Elementary Business English Course Book Practice File. New Edition. VH-TT, 2011.

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