000 00262nam a2200121Ia 4500
008 221121s9999 xx 000 0 und d
041 _aENGLISH
245 0 _aCHEMISTRY 9TH
260 _bC.P.PUBLICATION
300 _a120
650 _aCHEMISTRY
942 _cREF
999 _c177445
_d177445