000 00255nam a2200121Ia 4500
008 211209s1970 xx 000 0 und d
041 _aeng
082 _aCHU
100 _aCHURCH A H
245 _aMECHANICAL VIBRATIONS
260 _c1970
300 _a432
999 _c11964
_d11964