Kober and Hanson. Occupational diseases and occupational hygiene. 1.
Kober and Hanson. Occupational diseases and occupational hygiene. 1.
Prof. poisoning. Per. from English. M. A. Levitskaya, ed. and with a foreword. V. A. Levitsky. Ed. Vopr. Labor, 1925. Pp. 286. Ts. 2 p. 40 k.
Miloslavsky V.
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