000			00573nam a2200205Ia 4500
999			_c11078 _d11078
005			20221010150538.0
008			180712s9999 xx 000 0 und d
020			_a020142293X
041			_aEN
082			_a004.6 _bHAL _223
100			_aHalsall, Fred
245			_aData communications, computer networks and open systems / _cFred Halsall
250			_a4th ed.
260			_aHarlow _bAddison-wesley pub. _c1996
300			_aix, 907 p.
500			_a Includes bibliogrphy, appendix, glossary and index.
509			_aNS
650			_aComputer Networks
942			_cS