000			00313nam a2200133Ia 4500
005			20260413100612.0
008			230516s9999||||xx |||||||||||||| ||und||
100			_aAggarwal OP
245		0	_aEngg Chemistry
260			_bDelhi Khanna Pub. _c1993
300			_a974
942			_cGB
999			_c2659 _d2659