000 00260nam a2200109Ia 4500
008 231212s1978 xx 000 0 und d
041 _aeng
082 _a621.31
100 _aPhelan R.M.
245 _aAutomatic Control System
260 _aLondon
_bMcGrowh
_c1978
999 _c958343
_d958343