000 00254nam a2200109Ia 4500
008 160710s1953 xx 000 0 und d
100 _aGRIM,RALPH
245 _aCLAY MINERALOGY
260 _aNEW YORK
_bMCGRAW HILL
_c1953
300 _a384
942 _2ddc
_cB
999 _c28540
_d28540