000 00220 a2200097 4500
001 21933
100 _aIrwin, W. C.
245 _aDigital Computer Principles
260 _a
_bD. Van-Nostrand
_c1966
090 _c15164
_d15164
942 _aNUST-CAE
_cM
_c5741
999 _c257006
_d257006