000 00336nam a2200121Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aGray, Harry B
245 0 _aElectrons and chemical bonding
260 _bW .A .Benjamin Inc.
_aNew york
_c1965
653 _aChemical bonds
942 _c1
999 _c97020
_d97020