000			00385nam a2200157Ia 4500
008			240509s9999 xx 000 0 und d
041			_aeng
082			_a004.6 SHA _bSHA
100			_aShay W.A.
245			_aUnderstanding Data Communication and Networks
250			_a2nd ed.
260			_bBrooks/Cole Publishing Comp.
300			_a711
700			_aShay W.A.
906			_b52.5
999			_c357922 _d357922