APA引文

(2002). Longman language activator: Helps you write and speak natural English. London: Longman.

Trích dẫn kiểu Chicago

Longman Language Activator: Helps You Write and Speak Natural English. London: Longman, 2002.

MLA引文

Longman Language Activator: Helps You Write and Speak Natural English. London: Longman, 2002.

警告：這些引文格式不一定是100％准確.