000 00285nam a2200121Ia 4500
008 220201s1989 xx 000 0 eng d
082 _a621.3815
_bTOK
100 _aTokheim,Roger L.
245 0 _aDigital electronics
260 _aNY
_bMcgraw Hill
_c1989
300 _a335
942 _2ddc
999 _c34555
_d34555