000			00326nam a22001457a 4500
999			_c39174 _d39174
003			OSt
020			_a9780131756052
100			_aBlack, Uyless
245			_aComputer Networks : Protocols...Interfaces
250			_a2nd
260			_aNew Jersey _bPrentice Hall _c1993
300			_a436p.
901			_a26078
942			_2ddc _cBK