00392nam a2200121 a 450000500170000002000150001708200130003210000190004524501220006426000440018630000210023070000190025120251203110555.0  a0070589526  a530bHAL  aHalpern, Alvin  aSchaum's Outline of Theory and Problems of Beginning Physics II.bWaves, Electromagnetism, Optics, and Modern Physics  aNew DelhibPrentice-Hall of Indiac2004  a532p.c26 cm. PB  aErlbach, Erich