एपीए उद्धरण

Pamela J.Sharpe. (2006). Barron's practice exercises for the TOEFL. Tp. Hồ Chí Minh: Trẻ.

शिकागो स्टाइल उद्धरण

Pamela J.Sharpe. Barron's Practice Exercises for the TOEFL. Tp. Hồ Chí Minh: Trẻ, 2006.

एमएलए उद्धरण

Pamela J.Sharpe. Barron's Practice Exercises for the TOEFL. Tp. Hồ Chí Minh: Trẻ, 2006.