通信機業界
By: Tō Tsuneyoshi cho
Series: Kyōikusha shinsho; Sangyōkai shirīzu -- 129
Publisher: Kyōikusha
Published: 1979
Place of publication: Higashimurayama
Language: jpn
Number of pages: 273
Subjects: Telecommunication equipment industry
Other titles: Tsūshinki gyōkai
Notes: Bibliography: p. 271-273.