00370nam a2200145Ia 4500008004100000020001500041041001200056082001600068100001500084245006000099250000800159260004100167300000800208650000800216221030s9999    xx            000 0 und d  a817758961x  aEnglish  a105.23bDod  aA. Z. Dodd 4aThe Essential Guide to Telecommunicationcby A. Z. Dodd  a4th  bPearson   EducationaNew Delhic2006  a594  aECE