APA aipamena

(2002). Cambridge proficiency examination practice 6: University of Cambridge local examinations syndicate. Nxb Trẻ.

Chicago Style aipamena

Cambridge Proficiency Examination Practice 6: University of Cambridge Local Examinations Syndicate. Nxb Trẻ, 2002.

MLA aipamena

Cambridge Proficiency Examination Practice 6: University of Cambridge Local Examinations Syndicate. Nxb Trẻ, 2002.

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