Cita APA

Sharpe, P. J., & Pamela J.Sharpe. (2008). Barron's TOEFL iBT internet-based test 2006-2007-2008. Tp. Hồ Chí Minh: Trẻ.

Citación estilo Chicago

Sharpe, Pamela J., y Pamela J.Sharpe. Barron's TOEFL IBT Internet-based Test 2006-2007-2008. Tp. Hồ Chí Minh: Trẻ, 2008.

Cita MLA

Sharpe, Pamela J., y Pamela J.Sharpe. Barron's TOEFL IBT Internet-based Test 2006-2007-2008. Tp. Hồ Chí Minh: Trẻ, 2008.