000			00436nam a2200145Ia 4500
008			211224s9999 xx 000 0 und d
020			_a873711653
082			_a615.902 CAL
100			_aCalabrese, Edward J
245		0	_aAir toxics and risk assessment
260			_aChelsea, Mich: _bLewis Publishers, _c1991
300			_axx, 662 p. : ill. ; 25 cm
650			_aAir - Pollution - Standards - United States
700			_aKenyon, Elaina M
999			_c13912 _d13912