APA引文

Hopkims, D., & Cullen, P. (2007). Grammar for IELTS with Answers. New york: Cambridge University Press.

Trích dẫn kiểu Chicago

Hopkims, Diana, và Pauline Cullen. Grammar for IELTS With Answers. New york: Cambridge University Press, 2007.

MLA引文

Hopkims, Diana, và Pauline Cullen. Grammar for IELTS With Answers. New york: Cambridge University Press, 2007.

警告：這些引文格式不一定是100％准確.