000 00387nam a2200157Ia 4500
008 190516s9999 xx 000 0 und d
100 _aPalmer, W.G.
_94321
245 0 _aValency
_cClassical and Modern
250 _a2
260 _bCambridge
_c1944
_aLondon
300 _a244
600 _tChemistry
_92802
650 _aChemistry
_92802
942 _cBK
999 _c126413
_d126413