[On the problem of working conditions in the production of phthalic anhydride].
D000397:Air Pollution; D002617:Chemical Industry; D009787:Occupational Medicine; D010795:Phthalic Acids / Q000032:analysis*
D010795:Phthalic Acids
K voprosu ob usloviiakh truda v proizvodstve ftalevogo angidrida.