00368nam a22001217a 4500020001800000040000900018082001700027100001800044245005800062250001700120260005100137650005800188  a9788178083735  cNust  a621.382bSKL  aBernard Sklar  aDigital communications fundamentals and applications   a2nd Edition   aNew Delhi:bPearson education services,c2001.  aDigital communications fundamentals and applications