000 00322nam a2200145Ia 4500
008 221121s9999 xx 000 0 und d
041 _aENGLISH
082 _bALL
100 _aALLEN INSTITUTE
245 0 _aADVANCED CHEMISTRY-2
260 _bALLEN PUBLICATION
300 _a54
650 _aCHEMISTRY
942 _cREF
999 _c177488
_d177488