Duckworth M. Michael & Turner R. Rebecca. (2008). Business Result. Upper-Intermediate: Student's Book. New York, Oxford University Press, 2008.
Chicagoスタイル(17版)引用形式Duckworth M. Michael , Turner R. Rebecca. Business Result. Upper-Intermediate: Student's Book. New York, Oxford University Press, 2008, 2008.
MLA(9版)引用形式Duckworth M. Michael , Turner R. Rebecca. Business Result. Upper-Intermediate: Student's Book. New York, Oxford University Press, 2008, 2008.
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