APA引文

Doff, A., & Jones, C. (1997). Language in use: Upper-intermediate : teacher's book. Cambridge: Cambridge U. P..

Trích dẫn kiểu Chicago

Doff, Adrian, và Christopher Jones. Language in Use: Upper-intermediate : Teacher's Book. Cambridge: Cambridge U. P., 1997.

MLA引文

Doff, Adrian, và Christopher Jones. Language in Use: Upper-intermediate : Teacher's Book. Cambridge: Cambridge U. P., 1997.

警告：這些引文格式不一定是100％准確.