Hahn, R. (2011). A1 TOEFL IBT: Speaking. Tp.Hồ Chí Minh: Trẻ;Kelt.
Chicago Style CitationHahn, Richie. A1 TOEFL IBT: Speaking. Tp.Hồ Chí Minh: Trẻ;Kelt, 2011.
Cita MLAHahn, Richie. A1 TOEFL IBT: Speaking. Tp.Hồ Chí Minh: Trẻ;Kelt, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.