000 00270nam a2200097 4500
245 _aComputers : a systems approach
_cby Ned, Chapin
100 _aChapin, Ned
260 _aNew York
_bD.Van Nostrand
_c1971
300 _axvi, 686p.: illus.; 24cm.
082 _aR621.38195
_bCHA
999 _c29948
_d29948