00319nam a2200133Ia 4500020000900000082001500009100001600024245005900040250000600099260006000105300000800165500000600173650000600179  aNULL  a621.381958  aJain, R. P. 0aDigital Electronics Practice Using Integrated circuits  a-  aN. DelhibTata McGraw - Hill Publishing Company Limited  a323  a0  a-