Tsūshin kyōgi.
Contributors: Minami Manshū Tetsudō Kabushiki Kaisha. Nōritsuhan.
Series: Shokunō kyōgi shiryō -- dai 2-gō
Publisher: Mantetsu Sōsaishitsu Nōritsuhan
Published: 1940
Place of publication: [Dairen]
Language: jpn
Number of pages: 42
Subjects: Telecommunication -- Ability testing -- China -- Manchuria.
Notes: Cover title.