APA-referens

Mortimer, C. (1988). Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp.

Chicago-stil citat

Mortimer, Collin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp, 1988.

MLA-referens

Mortimer, Collin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp, 1988.

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