APA引文

 Nunan, D. (1999).  Second language teaching & learning.  Heinle & Heinle.

Trích dẫn kiểu Chicago

 Nunan, David.  Second Language Teaching & Learning.  Heinle & Heinle, 1999.

MLA引文

 Nunan, David.  Second Language Teaching & Learning.  Heinle & Heinle, 1999.

警告：這些引文格式不一定是100％准確.