000 002490000a22001210004500
245 _aControl engineering
100 _aMorris, N.M.
260 _aLondon
_bE.L.B.S.
_c1970
300 _a194 p.
080 _a621-5
_bM6
041 _aEN
942 _cBK
999 _c94020
_d94020