APA引文

Helen Naylor. (1999). Cambridge first certificate handbook with answers. Cambridge, UK: Cambridge Univ. Press.

Trích dẫn kiểu Chicago

Helen Naylor. Cambridge First Certificate Handbook With Answers. Cambridge, UK: Cambridge Univ. Press, 1999.

MLA引文

Helen Naylor. Cambridge First Certificate Handbook With Answers. Cambridge, UK: Cambridge Univ. Press, 1999.

警告：这些引文格式不一定是100％准确.