APA引文

Mark Griffiths. (2012). Cambridge IELTS Practice tests. Tổng hợp.

Trích dẫn kiểu Chicago

Mark Griffiths. Cambridge IELTS Practice Tests. Tổng hợp, 2012.

MLA引文

Mark Griffiths. Cambridge IELTS Practice Tests. Tổng hợp, 2012.

警告：这些引文格式不一定是100％准确.