Zukaiiri Rōdō anzen kanri benran
Subtitle: Rōdō anzen eisei kisoku (anzen no bu) kaisetsu
By: Sugita Tokushirō cho
Publisher: Tetsudō Bunka Kenkyūkai
Published: 1949
Place of publication: Tōkyō
Language: jpn
Number of pages: 199
Other titles: Rōdō anzen kanri benran.