Cook, A. (2017). American accent training: A guide to speaking and pronouncing colloquial American English (4th ed.). New York: Barron's.
Trích dẫn kiểu ChicagoCook, Ann. American Accent Training: A Guide to Speaking and Pronouncing Colloquial American English. 4th ed. New York: Barron's, 2017.
MLA CitationCook, Ann. American Accent Training: A Guide to Speaking and Pronouncing Colloquial American English. 4th ed. New York: Barron's, 2017.
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