00337nam a2200145Ia 4500008004100000041000800041082002100049100001500070245003600085250001200121260001900133300000800152365001600160700001500176230718s9999    xx            000 0 und d  aeng  a621.3815'48bGUP  aGupta B.R.  aElectronics And Instrumentation  a2nd ed.  c2003bS. Chand  a520  cRs.b210.00  aGupta B.R.