00275nam a2200121Ia 4500008004100000100003500041245001600076260001600092300000900108650001200117942000700129999001700136190216s9999||||xx |||||||||||||| ||und||  aJoseph Ittyavirah And Premnath 0aElectronics  bDhanpat Rai  a392p  aPhysics  cBK  c33280d33280