000			00608nam a2200181 a 4500
005			20220321150753.0
008			060731s19uu xx 00 eng d
020			_a0471548456 hard bound
100	1	0	_aFitzgerald, Jerry
245	1	0	_aBusiness data communications : _bbasic concepts, security and design / _cJerry Fitzgerald.
250			_a4th ed.
260	0		_aNew York : _bJohn Wiley, _cc1993.
300			_axxv, 722p.+ : ill. ; 24 cm.
500			_aGlossary : p. 681-722. Includes index.
650			_aData transmission systems.
650			_aComputer networks.
650		4	_aOffice practice _xAutomation.
999			_c52388 _d52388