Pamela J.Sharpe. (2008). Barron's TOEFL iBT internet-based test 2006-2007-2008. Tp. Hồ Chí Minh: Trẻ.
シカゴスタイル引用形Pamela J.Sharpe. Barron's TOEFL IBT Internet-based Test 2006-2007-2008. Tp. Hồ Chí Minh: Trẻ, 2008.
MLA引用形式Pamela J.Sharpe. Barron's TOEFL IBT Internet-based Test 2006-2007-2008. Tp. Hồ Chí Minh: Trẻ, 2008.
警告: この引用は必ずしも正確ではありません.