道綽採取業
Subtitle: henshū Rōdōshō Shokugyō Anteikyoku
Series: Shokumu kaisetsu -- dai 64-shū
Publisher: Rōdōshō Shokugyō Anteikyoku
Published: 1949
Place of publication: Tokyo]
Language: jpn
Number of pages: 344
Subjects: Mineral industries; Job descriptions; Employees; Vocational qualifications
Other titles: Doshaku saishugyō
Notes: Cover title.