Kikai gijutsusha sankō sōsho
Subtitle: Kōken zenki shiken
By: Shokugyō Kyōkai Ōsaka-fu Shikai hensan
Edition: Shonan
Publisher: Sangyō Keizai Shinbunsha
Published: 1944
Place of publication: Ōsaka-shi
Language: jpn
Number of pages: 141