000			00323nam a2200133Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a363.7 _bPER-A
100			_aPerkins, Henry C
245		0	_aAir Pollution
260			_bNo Publisher _aNew Delhi _c1978
630			_xGeneral Stack
650			_vChemistry
942			_cBOOK
999			_c76287 _d76287