000			00441nam a2200157Ia 4500
001			11684
008			150525s9999 xx 000 0 und d
020			_a0-07-229748-4
100			_aHutchinson, Sarah Stacey C Sawyer
245			_aComputers,Communications, Information
250			_a7th ed.
260			_aBoston _bMcgraw-Hill _c2000
300			_axvi(various pagings) :ill
500			_aIncludes index
650			_aTelecommunication Systems
999			_c45906 _d45906