000 00427nam a2200181Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a541.396
_bP177
100 _aPalmer W G
245 _aValency
_bclassical and modern
250 _a2nd
260 _aCambridge
_bCUP
_c1959
300 _axii,244p.
650 _aChemical bonds
650 _aValency theory
942 _cBK
999 _c43173
_d43173