APA引文

Mark Griffiths. (2014). Essential tests for IELTS. Tổng hợp.

Trích dẫn kiểu Chicago

Mark Griffiths. Essential Tests for IELTS. Tổng hợp, 2014.

MLA引文

Mark Griffiths. Essential Tests for IELTS. Tổng hợp, 2014.

警告：这些引文格式不一定是100％准确.