000 00319nam a2200121Ia 4500
008 211209s1961 xx 000 0 und d
041 _aeng
082 _a629.8323 WES
100 _aWESTWATER F L
245 _aAN INTERDUCTION TI SERVAMECHANISMS
260 _aLONDAN
_bTHE E3NGINEERING UNEVERSITES
_c1961
300 _ax191
999 _c99758
_d99758