00358nam a2200133Ia 450000500170000000800410001702000150005808200180007310000190009124500400011026000380015030000100018870000260019820260205054237.0260111s9999||||xx |||||||||||||| ||und||  a0074624563  a621.382  T19P  aTaub , Herbert 0aPrinciples of Communication Systems  aNew DelhibTata McGraw Hillc2003  a758p.  aShilling , Donald L./