00290nam a2200121Ia 4500008004100000020001800041041000800059100003300067245003000100250001200130260001800142300000800160211209s2013    xx            000 0 und d  a9788177585582  aeng  aRODDY,DENNIS AND COOLEN JOHN  aELECTRONIC COMMUNICATION   a4TH ed.  bPEARSONc2013  a723