APA引文

(2009). Essential phonetics for ielts (Kèm theo CD/889-90).

Trích dẫn kiểu Chicago

Essential Phonetics for Ielts (Kèm Theo CD/889-90). 2009.

MLA引文

Essential Phonetics for Ielts (Kèm Theo CD/889-90). 2009.

警告：這些引文格式不一定是100％准確.