[Studies on conditions of workers in Russia in the 2d half of the 19th century. (Work of V. V. SVIATLOVSKII)].
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D049672:History, 19th Century; D049673:History, 20th Century; D007221:Industry; D009787:Occupational Medicine / Q000266:history*; D012426:Russia; D014937:Work
BIOGRAPHIES; INDUSTRIAL MEDICINE/history