Denpa, hōsō gojūnen no kiseki
By: [henshū Denpahō Hōsōhō Shikō 50-shūnen Kinenshi Henshū Iinkai]
Publisher: Denki Tsūshin Shinkōkai
Published: 2000
Place of publication: Tōkyō
Language: jpn
Number of pages: 350
Subjects: Telecommunication; History
Other titles: Denpa, hōsō 50-nen no kiseki