000			00279nam a2200121Ia 4500
100			_aW H O
942			_cBK
654			_a
245			_aHealth hazards of the human environment
260			_aGeneva _bWorld Health Organization _c1972
082			_a614.7
300			_bPb _c24cm _a387
999			_c379741 _d379741
041			_aeng