Denki tsūshin gyōsei ʾ87
By: Yūseishō Tsūshin Gyōsei Mondai Kenkyūkai hen.
Contributors: Yūseishō Tsūshin Gyōsei Mondai Kenkyūki (Japan)
Publisher: Gyōsei
Published: 1987
Place of publication: Tōkyō
Language: jpn
Number of pages: 361
Subjects: Telecommunication -- Japan.; Information networks -- Japan.