Deismireacht APA

Bazin, A., & Boyd, E. (2008). Achieve IELTS 1: Practice test book. United Kingdom: Heinle Cengage learning.

Trích dẫn kiểu Chicago

Bazin, Anthea, và Elaine Boyd. Achieve IELTS 1: Practice Test Book. United Kingdom: Heinle Cengage learning, 2008.

Deismireacht MLA

Bazin, Anthea, và Elaine Boyd. Achieve IELTS 1: Practice Test Book. United Kingdom: Heinle Cengage learning, 2008.

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