000			00649nam a2200241Ia 4500
001			20912
005			20250221151652.0
008			250214s9999||||xx |||||||||||||| ||und||
020			_a201565064
100			_aHalsall, Fred
245		0	_aData communications, computer networks and open systems
250			_a3
260			_aNew York
260			_bAddison-Wesley
260			_c1992
300			_axi, 772p. : ill.
500			_aIncludes Bibliographical references and index.
650			_aComputer networks
650			_aComputer networks protocols
650			_aData transmission systems
650			_aLocal area networks
942			_cBK
999			_c36884 _d36884