000 00346nam a2200121Ia 4500
005 20251007104409.0
008 251006s9999 xx 000 0 und d
100 _agray,harry b.
245 0 _achemical bonds:an introduction to atomic and - molecular structure. gray,harry b.
260 _a1st ed. | calif Benjamin
260 _c1973
942 _cBOK
999 _c6331
_d6331