000 00266nam a22001097a 4500
082 _a629.8323 WES'I
100 _aWESTWATER, F. L,WADDELL, W. A
_957260
245 _aAN INTRODUCTION TO SERVOMECHANISMS
260 _aLONDON
_bEUP
_c1961
300 _a191P
942 _cBK
999 _c567555
_d567555