00273nam a2200121Ia 4500008004100000100001300041245002900054260002300083300000900106650001200115942000700127999001700134190216s9999||||xx |||||||||||||| ||und||  aMehta.Vk 0aSelf Test In Electronics  bS Chand & Coc1984  a191p  aPhysics  cBK  c33037d33037