Cusack, B. (2007). Listening and speaking skills. Oxford: Macmillan.
Trích dẫn kiểu ChicagoCusack, Barry. Listening and Speaking Skills. Oxford: Macmillan, 2007.
MLA引文Cusack, Barry. Listening and Speaking Skills. Oxford: Macmillan, 2007.
警告：这些引文格式不一定是100％准确.