00377nam a22001097a 4500020001500000040000900015082001900024100002000043245012500063260003500188650004400223  a0070709645  cNust  a621.382bSTA'M  aRobert G. Winch  aTelecommunication  transmission system bMicrowave, fiber optic, mobile cellular, radio, data, and digital multiplexing   aNew York:bMcGraw Hill,c1993.  aTelecommunication  transmission system