000			00355nam a2200169Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a621.381
100			_aMark Sportack.
245		0	_aNetworking essentials.
260			_bTechmedia
260			_c1998
300			_a575p.
365			_b399
650			_aCOMPUTER
942			_cNIIT
999			_c5079 _d5079