Doitsu no marugarin kōgyōron
Subtitle: Shōwa jūnen sangatsu
Series: Daizu Kōgyō Kenkyūkai hōkoku -- dai 4-shū
Publisher: Daizu Kōgyō Kenkyūkai
Published: 1936
Place of publication: [Minami Manshū]
Language: jpn
Number of pages: 280