APA引文

May, P. (2010). Complete PET Workbook without answers. Cambridge University Press.

Trích dẫn kiểu Chicago

May, Peter. Complete PET Workbook Without Answers. Cambridge University Press, 2010.

MLA引文

May, Peter. Complete PET Workbook Without Answers. Cambridge University Press, 2010.

警告：这些引文格式不一定是100％准确.