Gemeinschaftsforschung "Arbeitssicherheit" im Eisenerzbergbau und in der Eisen- und Stahlindustrie. Untersuchung Nr 3/7, Forschung in der deutschen Eisen- und Stahlindustrie. = Community research: "Work safety" in iron ore mining and the iron and steel industry. Study No. 3/7, Research in the German iron and steel industry. Doc. No. 8086/65 d, 1967

1967 
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