00329nam a2200109 a 450000500170000000800410001704100080005810000220006624500740008826400420016230000150020420260717091747.0260717s1999    ii            000 0 eng d  aeng1 aTokheim, Roger L.10aDigital electronics : principle and applications /cTokheim, Roger L. 1aNew Delhi :bTata McGraw Hill,c1999.  aix, 406 p.