Principles of the classification of work according to the degree of strenuousness, unhealthy conditions and danger

Marchenko, E.N.; Kandror, I.S.; Rozanov, L.S.

Gigiena Truda i Professional'nye Zabolevaniya (3): 4-12

1972


ISSN/ISBN: 0016-9919
PMID: 5025079
Document Number: 57237

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