000 00389nam a2200181Ia 4500
003 NDCL
008 180829s9999||||ii |||||||||||||| ||eng||
020 _a6348
040 _aNDCL
041 _aEnglish
082 _a541.396 RP
_216th ed
100 _aBanerjee,D.
100 _aRay, P
245 0 _aTheries of Valency
_cP Ray
260 _c1969
650 _aChemistry
942 _2DDC
_cBK
999 _c8902
_d8902