APA引文

Cambridge English language assessment. (2017). Cambridge English IELTS 12 academic with answers: Authentic examination papers. England: Cambridge University press.

Trích dẫn kiểu Chicago

Cambridge English language assessment. Cambridge English IELTS 12 Academic With Answers: Authentic Examination Papers. England: Cambridge University press, 2017.

MLA引文

Cambridge English language assessment. Cambridge English IELTS 12 Academic With Answers: Authentic Examination Papers. England: Cambridge University press, 2017.

警告：这些引文格式不一定是100％准确.