APA引文

Berry, R., & Roger Berry. (1993). Collins Cobuild English guides. London: HarperCollins.

Trích dẫn kiểu Chicago

Berry, Roger, và Roger Berry. Collins Cobuild English Guides. London: HarperCollins, 1993.

MLA引文

Berry, Roger, và Roger Berry. Collins Cobuild English Guides. London: HarperCollins, 1993.

警告：這些引文格式不一定是100％准確.