APA引文

Richards, J., & Long, M. (1988). Breakthrough: A Course in English Communication Practice. London: Oxford University Press.

Trích dẫn kiểu Chicago

Richards, J.C., và M.n Long. Breakthrough: A Course in English Communication Practice. London: Oxford University Press, 1988.

MLA引文

Richards, J.C., và M.n Long. Breakthrough: A Course in English Communication Practice. London: Oxford University Press, 1988.

警告：这些引文格式不一定是100％准确.