Hahn, R. (2010). A1 TOEFL IBT: Listening. Tp.Hồ Chí Minh: Trẻ;Kelt.
シカゴスタイル引用形Hahn, Richie. A1 TOEFL IBT: Listening. Tp.Hồ Chí Minh: Trẻ;Kelt, 2010.
MLA引用形式Hahn, Richie. A1 TOEFL IBT: Listening. Tp.Hồ Chí Minh: Trẻ;Kelt, 2010.
警告: この引用は必ずしも正確ではありません.