00579nam a2200205 a 450000500170000002000150001708200130003210000220004524500350006726000260010230000250012869000170015369000470017069000130021770000210023096400160025199700190026799900190028695200680030520251203110832.0  a0205327389  a384bDAV  aDavie, William. R  aPrinciples of electronic media  aBostonbPearsonc2003  axvi,446p.c28 cm. PB  aBroadcasting  aArtificial satellites in Telecommunication  aInternet  aUpshaw, James. R  bcdefg_  a125761 LIBSS C  c104391d104391  00104070aPUbPUd2007-10-29g2460.00l0o384 DAVp125761yBK