00333nam a2200133Ia 4500008004100000041001200041082001700053100003300070245002400103250001200127260002800139300000800167650002400175231217s9999    xx            000 0 und d  aEnglish  a621.381  GUP  aGupta, B R  Singhal, Vandana 0aDigital electronics  a2nd ed.  c2001bSK Kataria & Sons  a419  aDigital,electronics