000			00311nam a2200145Ia 4500
008			230302s9999 xx 000 0 und d
041			_aENGLISH
082			_a540
100			_aCritchow.P
245		0	_aMastering chemistry
260			_aaaa _bNot Mentioned
300			_a0
650			_aChemistry
942			_cBK
999			_c9995 _d9995