001: 29613
003: Starlibrary PMS 4.5
005: 20180430
020: ^a978-81-203-0925-8
066: ^aUy.D
072: ^aComputer networks
082: ^a004.6
100: ^aUyless D. Black
240: ^aData communications and distributed networks
245: ^aData communications and distributed networks
260: ^c1993
650: ^aData transmission systems
650: ^aElectronic data processing--Distributed processing