Productivity in coal mines
Subtitle: Second item on the agenda
Series: Report (International Labour Organisation. Coal Mines Committee) -- 5th sess., no. 2
Published: 1953
Place of publication: Geneva
Language: eng
Number of pages: 137
Subjects: Labor productivity; Coal mines and mining
Notes: At head of title: Report 2. International labour organization. Coal mines committee. 5th sess., Düsseldorf, 1953.