000 00270nam a2200121Ia 4500
008 220201s1968 xx 000 0 eng d
082 _a621.317
100 _aMorris, NM
245 0 _aControl engineering
260 _bMc graw hill
_c1968
300 _a194
942 _2ddc
999 _c77117
_d77117