APA引文

University of Cambridge ESOL examinations. (2017). Cambridge English IELTS 6 with answers: Authentic examination papers from Cambridge Esol. England: Cambridge University press.

Trích dẫn kiểu Chicago

University of Cambridge ESOL examinations. Cambridge English IELTS 6 With Answers: Authentic Examination Papers From Cambridge Esol. England: Cambridge University press, 2017.

MLA引文

University of Cambridge ESOL examinations. Cambridge English IELTS 6 With Answers: Authentic Examination Papers From Cambridge Esol. England: Cambridge University press, 2017.

警告：这些引文格式不一定是100％准确.