000			00554nam a2200217Ia 4500
005			20250702144724.0
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020			_a9812338927
040			_aMAIN
041			_aEnglish
082			_a004.6 _bHAL
100			_aHalsall, Fred
245		0	_aData communications, computer networks and open systems
250			_a4th ed.
260			_aNew York _b; Addison-Wesley _c, 1996
300			_axvi,907p.
650			_aComputer Networks
650			_aData Commucation
650			_aNetworking
942			_cBK
999			_c126477 _d126477