APA引文

The International English School. (2007). TOEFL next generation IBT internet based TOEFL: Student Book.

Trích dẫn kiểu Chicago

The International English School. TOEFL Next Generation IBT Internet Based TOEFL: Student Book. 2007.

MLA引文

The International English School. TOEFL Next Generation IBT Internet Based TOEFL: Student Book. 2007.

警告：這些引文格式不一定是100％准確.