00258nam a2200109Ia 4500100001700000654001600017245004800033260002700081082002000108300000800128546001200136  aTower/ T.D.   aelectronics  aTowers  International  Transistor  Selector  bB.P.B.aNew yorkc1985  a621.381528bTOW  a379  aENGLISH