000 00341nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a541.15
_bKET
100 _aKewtelaar, J A A
245 0 _aChemical constitution: An introduction to the theory of the chemical bond
250 _aEd.2
260 _aAmsterdam
_bElsevier
_c1958
942 _cBK
999 _c20474
_d20474