00432nam a22001457i 4500001001000000005001700010008004100027082002100068100000900089245003400098260005600132300001700188650006300205020001800268SXC02694720260819093813.0260101s2004    ii            000 0 eng d  a621.38 NII-C222  aNIIT10aCommunication systems /cNIIT  abMcGraw Hill Publishing Co. Ltd., New Delhi,c2004  ap. ;c22 cm. 0aElectronics and communication engineering; Applied physics  a9780582810211