00614nam a22001817a 4500003000400000005001700004008004100021020001800062028000800080082001400088100001800102245009200120260005200212300003500264655004200299655007400341655001700415SNU20140626174119.0140626b        xxu||||| |||| 00| 0 eng d  a9780273026778  aHCL  a004.6 RON  aRonayne, John  aThe integrated services digital network b: from concept to applicationc/ John Ronayne  aLondon : Pitman ; New York b: Wiley, c©1988.  avi, 230 p. b: ill. c; 25 cm.  aIntegrated services digital networks.  aThe integrated services digital network : from concept to application  aJohn Ronayne