000 00278nam a2200109Ia 4500
008 160710s1955 xx 000 0 und d
100 _aFREY, P.R
245 _aCHEMISTRY PROBLEMS & HOURS TO SOLVE THEM
260 _bN.Y. BARNES AND NOBLE
_c1955
300 _a163
942 _2ddc
_cB
999 _c18865
_d18865