00652nam a2200205 a 4500008004100000010001400041020001500055040002800070082001400098100002100112245006900133250001200202260005300214300003400267504002000301650003100321650002300352650005600375999001500431120227s1993    njua          001 0 eng d  a 92028935  a0132034646  aDLCcDLCdDLCdBD-KhUET00a004.62201 aBlack, Uyless D.10aData communications and distributed networks /cUyless D. Black.  a3rd ed.  aEnglewood Cliffs, N.J. :bPrentice Hall,cc1993.  axvi, 426 p. :bill. ;c25 cm.  aIncludes index. 0aData transmission systems. 0aComputer networks. 0aElectronic data processingxDistributed processing.  c3663d3663