石灰窒素製造業
By: [henshū Rōdōshō Shokugyō Anteikyoku]
Series: Shokumu kaisetsu -- dai 109-shū
Publisher: Rōdōshō Shokugyō Anteikyoku
Published: 1951
Place of publication: Tokyo
Language: jpn
Number of pages: 323
Subjects: Nitrogen industries; Employees; Job descriptions; Vocational qualifications
Other titles: Sekkai chisso seizōgyō
Notes: Cover title.