APA引文

Richards, D. (1994). Business telephoning in praetice. Hong KongThe: Language Key Ltd.

Trích dẫn kiểu Chicago

Richards, David. Business Telephoning in Praetice. Hong KongThe: Language Key Ltd, 1994.

MLA引文

Richards, David. Business Telephoning in Praetice. Hong KongThe: Language Key Ltd, 1994.

警告：这些引文格式不一定是100％准确.