Tekkōseki yusō
Subtitle: Tekkōseki Yusō Kōritsu Senmon Shisatsudan hōkokusho
Series: Productivity report -- 31; Productivity report (Tokyo, Japan) -- 31.
Publisher: Nihon Seisansei Honbu
Published: 1958
Place of publication: Tōkyō
Language: jpn
Number of pages: 251