000 00316nam a2200133Ia 4500
008 220201s1969 xx 000 0 eng d
082 _bPAC
100 _aPaculing, C.
245 0 _aNature of the chemical bond
250 _a3
260 _aNew Delhi
_bOxford Publishing house
_c1969
300 _a644
942 _2ddc
999 _c19420
_d19420