苛性ソーダ・ソーダ灰製造業．
Series: Shokumu kaisetsu -- dai 87-shū
Publisher: Rōdōshō Shokugyō Anteikyoku
Published: 1950
Place of publication: Tokyo
Language: jpn
Number of pages: 286
Subjects: Soda industry; Employees; Job descriptions; Vocational qualifications
Other titles: Kasei sōda, sōdabai seizōgyō
Notes: Cover title.