00314nam a2200109Ia 450000500170000000800410001708200220005810000200008024500530010026000430015330000080019620260205054018.0260111s9999||||xx |||||||||||||| ||und||  a621.381958  T572D  aTokheim , R. L. 0aDigital Electronics: Principles and Applications  aNew DelhibTata McGraw Hill Pub.c2001  a406