[THE DUST HAZARD IN SANDSTONE AND GRANITE QUARRIES].
D000397:Air Pollution; D003604:Czechoslovakia; D004391:Dust; D006801:Humans; D008906:Mining; D009787:Occupational Medicine; D012822:Silicon Dioxide
D004391:Dust; C007886:granite; D012822:Silicon Dioxide
AIR POLLUTION; CZECHOSLOVAKIA; DUST; INDUSTRIAL MEDICINE; MINING
PRA SN'A PROBLEMATIKA LOMU P'ISKOVCOV'YCH A  ZULOV'YCH.