000 00273nam a2200109Ia 4500
008 211209s1950 xx 000 0 und d
041 _aeng
082 _a545 N60 LUK
100 _aLUKE D J
245 _aGRADED CALCULATIONS IN CHEMISTRY
260 _aLONDON
_bEDWARD ARNOLD
_c1950
999 _c2183
_d2183