000 00254nam a2200109Ia 4500
008 160710s1949 xx 000 0 und d
100 _aSERAT,HENRY
245 _aPHYSICS IN THE MODERN WORLD
260 _bRINEHART
_c1949
300 _a433
942 _2ddc
_cB
999 _c14368
_d14368