APA引文

Richie Hahn. (2011). A1 Toefl IBT - reading (Firts new.). Trẻ.

Trích dẫn kiểu Chicago

Richie Hahn. A1 Toefl IBT - Reading. Firts new. Trẻ, 2011.

MLA引文

Richie Hahn. A1 Toefl IBT - Reading. Firts new. Trẻ, 2011.

警告：這些引文格式不一定是100％准確.