APA引文

International Telecommunication Union. (1979). What is ITU? Geneva: International Telecommunication Union.

Trích dẫn kiểu Chicago

International Telecommunication Union. What Is ITU? Geneva: International Telecommunication Union, 1979.

MLA引文

International Telecommunication Union. What Is ITU? Geneva: International Telecommunication Union, 1979.

警告：這些引文格式不一定是100％准確.