APA引文

Mary Spratt. (2001). First cetificate direct - student's book. Cambridge, UK: Cambridge Univ. Press.

Trích dẫn kiểu Chicago

Mary Spratt. First Cetificate Direct - Student's Book. Cambridge, UK: Cambridge Univ. Press, 2001.

MLA引文

Mary Spratt. First Cetificate Direct - Student's Book. Cambridge, UK: Cambridge Univ. Press, 2001.

警告：这些引文格式不一定是100％准确.