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