APA引文

Sahanaya, W. IELTS preparation and practice. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Sahanaya, Wendy. IELTS Preparation and Practice. Oxford: Oxford University Press.

MLA引文

Sahanaya, Wendy. IELTS Preparation and Practice. Oxford: Oxford University Press.

警告：這些引文格式不一定是100％准確.