Dyfyniad APA

Hart, G. B. (2017). Business Benchmark: Upper intermediatr. Student's Book. New York: Cambridge University Press; Cambridge English.

Dyfyniad Arddull Chicago

Hart, Guy Brook. Business Benchmark: Upper Intermediatr. Student's Book. New York: Cambridge University Press; Cambridge English, 2017.

Dyfyniad MLA

Hart, Guy Brook. Business Benchmark: Upper Intermediatr. Student's Book. New York: Cambridge University Press; Cambridge English, 2017.

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