00273nam a2200109Ia 450000500170000000800410001708200160005810000170007424500310009126000330012230000080015520260224041003.0260224s9999||||xx |||||||||||||| ||und||  a621.381 KUM  aKumar, A.A.  0aPulse and digital circuits  aIndia : Prentice Hall,c2004  a467