000 00483nam a2200193Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a541.396
_bF911
100 _aFriend J N
245 _aTheory of valence
250 _a2nd rev.
260 _aLondon
_bLongmans
_c1915
300 _axiv,192p.
440 _aText books of physical chemistry series no.9
650 _aChemical bonds
650 _aValence theory
942 _cBK
999 _c32934
_d32934