Nunan, D. (2003). Listen in 2. Boston, MA: Thomson/Heinle.
Trích dẫn kiểu ChicagoNunan, David. Listen in 2. Boston, MA: Thomson/Heinle, 2003.
MLA引文Nunan, David. Listen in 2. Boston, MA: Thomson/Heinle, 2003.
警告：这些引文格式不一定是100％准确.
APA引文