APA引文

(2006). Longman essential activator. Harlow: Pearson.

Trích dẫn kiểu Chicago

Longman Essential Activator. Harlow: Pearson, 2006.

MLA引文

Longman Essential Activator. Harlow: Pearson, 2006.

警告：这些引文格式不一定是100％准确.