APA aipamena

Lougheed, L. (2012). Barron's IELTS: International English language testing system (2nd edition.). Tp.HCM: Nxb. Tổng hợp Tp.HCM.

Chicago Style aipamena

Lougheed, Lin. Barron's IELTS: International English Language Testing System. 2nd edition. Tp.HCM: Nxb. Tổng hợp Tp.HCM, 2012.

MLA aipamena

Lougheed, Lin. Barron's IELTS: International English Language Testing System. 2nd edition. Tp.HCM: Nxb. Tổng hợp Tp.HCM, 2012.

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