000 00283nam a22001097a 4500
082 _a539.7 STE'A
100 _aSTEVENS, B
_959655
245 _aATOMIC STRUCTURE AND VALENCY FOR GENERAL STUDENTS OF CHEMISTRY
260 _aLONDON
_bCHAPMAN & HALL
_c1962
300 _a103P
942 _cBK
999 _c569578
_d569578