एपीए उद्धरण

McCarter, S., Ash, J., & Easton, J. (2006). A book for IELTS (2nd ed.). Tp. Hồ Chí Minh: Tổng hợp.

शिकागो स्टाइल उद्धरण

McCarter, Sam., Judith Ash, और Julie Easton. A Book for IELTS. 2nd ed. Tp. Hồ Chí Minh: Tổng hợp, 2006.

एमएलए उद्धरण

McCarter, Sam., Judith Ash, और Julie Easton. A Book for IELTS. 2nd ed. Tp. Hồ Chí Minh: Tổng hợp, 2006.