Nanpō Kyōeiken no denki tsūshin jigyō
Subtitle: tsuketari, denki jigyō
Series: Nanpō Denki Tsūshin Chōsa Iinkai shiryō -- dai 1-shū
Publisher: Denki Tsūshin Kyōkai
Published: 1942
Place of publication: Tōkyō
Language: jpn
Number of pages: 85
Subjects: Communication and traffic; Electric industries
Notes: Cover title.