00342cam a2200133ua 4500020000900000041001000009082002300019100002500042245007100067260004400138300001200182365000900194504000500203  c7.50  aengh  a539.72 112bAND/DI  aAnderson, David L  .  aDiscovery of the electron / cDavid L Anderson.hTextual Documents  aToronto : bD Van nostrand co , c1966.  a138 ; .  a7.50  a