関東電信電話百年史
By: [henshūsha Nihon Denshin Denwa Kōsha Kantō Denki Tsushinkyoku]
Publisher: Denki Tsūshin Kyōkai
Published: 1968
Place of publication: Tōkyō
Language: jpn
Subjects: History; Nihon Denshin Denwa Kōsha. Kantō Denki Tsūshinkyoku
Other titles: Kantō denshin denwa hyakunenshi; Kantō denshin denwa 100-nenshi