APA引文

Hahn, R. (2011). A1 TOEFL iBT: Speaking. TP. HCM: Trẻ.

Trích dẫn kiểu Chicago

Hahn, Richie. A1 TOEFL IBT: Speaking. TP. HCM: Trẻ, 2011.

MLA引文

Hahn, Richie. A1 TOEFL IBT: Speaking. TP. HCM: Trẻ, 2011.

警告：这些引文格式不一定是100％准确.