Macfarlane, M. (1994). Open doors: Workbook 1. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoMacfarlane, Mike. Open Doors: Workbook 1. Oxford: Oxford University Press, 1994.
MLA CitationMacfarlane, Mike. Open Doors: Workbook 1. Oxford: Oxford University Press, 1994.
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