APA引文

Alexander, L. (2010). Longman English grammar practice for intermediate students. Longman.

Trích dẫn kiểu Chicago

Alexander, L.G. Longman English Grammar Practice for Intermediate Students. Longman, 2010.

MLA引文

Alexander, L.G. Longman English Grammar Practice for Intermediate Students. Longman, 2010.

警告：这些引文格式不一定是100％准确.