APA引文

Richards, J. C. (1993). English for International Communication: Workbook ( Interchange). Cambridge: Cambridge University.

Trích dẫn kiểu Chicago

Richards, Jack C. English for International Communication: Workbook ( Interchange). Cambridge: Cambridge University, 1993.

MLA引文

Richards, Jack C. English for International Communication: Workbook ( Interchange). Cambridge: Cambridge University, 1993.

警告：這些引文格式不一定是100％准確.