000			00352nam a2200157Ia 4500
008			180816s9999 xx 000 0 und d
082			_aTR540 C362e
100			_aChang, Raymond
245		0	_aEssential chemistry
260			_aNew York
260			_bThe McGraw-Hill Co.
260			_c1996
300			_a719 p
650			_aChemistry
942			_cBK
999			_c51912 _d51912