000 00385nam a2200121Ia 4500
008 160316s9999 xxu||||| |||| 00| 0 eng d
100 _aPorter Arthur
245 _aCybernetics Simplified
260 _aLondon
_bEnglish University
_c1969
300 _aX, 159p;18cm
650 _aCybernetics
999 _c7987
_d7987