000 00312nam a2200121Ia 4500
008 220201s1965 xx 000 0 eng d
041 _aENG
100 _aGRAY, HARRY B
245 0 _aELECTRONS AND CHEMICAL BONDING
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1965
300 _a223
942 _2ddc
999 _c49823
_d49823