00301nam a2200109Ia 4500008004100000020001800041100002300059245001900082260004900101650001200150700002900162190829s9999||||xx |||||||||||||| ||und||  a978003080244X  aWilliams, John E.  0aModern Physics  bHolt, Rinehart And Winston aNew York c1972  aPhysics  aTrinklein, Frederick E.