APA引文

(2006). Downtown 3: English for work and life. Boston, MA: Thomson/Heinle.

Trích dẫn kiểu Chicago

Downtown 3: English for Work and Life. Boston, MA: Thomson/Heinle, 2006.

MLA引文

Downtown 3: English for Work and Life. Boston, MA: Thomson/Heinle, 2006.

警告：这些引文格式不一定是100％准确.