000			00400nam a22001457a 4500
020			_a8178080982
040			_cNUST
082			_a004.6 _bHAL
100			_aHalsall, Fred _956457
245			_aData Communication Computer Networks and Open Systems
250			_a4th Edition
260			_aSingapore: _bPearson Education, _c2002.
650			_aComputer Communication Networks _995639
942			_2ddc _cBK
999			_c611002 _d611002