APA引文

Charles, D. (1989). Technology and Competition in the International Telecommunications Industry. London: Pinter Publishers.

Trích dẫn kiểu Chicago

Charles, David. Technology and Competition in the International Telecommunications Industry. London: Pinter Publishers, 1989.

MLA引文

Charles, David. Technology and Competition in the International Telecommunications Industry. London: Pinter Publishers, 1989.

警告:这些引文格式不一定是100%准确.