000 00333nam a2200121Ia 4500
008 211209s1962 xx 000 0 und d
041 _aeng
082 _a540 N62 OBE
100 _aOBERKRIESER J J
245 _aCHEMICAL ARTHMETICS(PROBLEM SOLVING IN CHEMISTRY)
260 _aNEW YORK
_bD. VAN NOSTLAND AND COMPANY
_c1962
300 _a214
999 _c3066
_d3066