Dubicka, I., & O'Keeffe, M. (2015). Market Leader: Advanced: Business English Course Book. PearsonLongman.
シカゴスタイル引用形Dubicka, Iwonna, , Margaret O'Keeffe. Market Leader: Advanced: Business English Course Book. PearsonLongman, 2015.
MLA引用形式Dubicka, Iwonna, , Margaret O'Keeffe. Market Leader: Advanced: Business English Course Book. PearsonLongman, 2015.
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