000 002850000a22001210004500
245 _aElectronics solid state control
100 _aNicholls, D.S.
260 _aLondon
_bMachinery Publishing Co.
_c1969
300 _a117 p., ill.
080 _a621-5
_bN5
041 _aEN
942 _cBK
999 _c94021
_d94021