000			00514nam a2200181 4500
020			_a9788131715369
041			_aeng
082			_a001.64404 _bSTA _218th.
100			_aStallings, William
245			_aData and computer communications _cby William Stallings
250			_a8th ed.
260			_aDelhi _bPearson Education _c2007
300			_axvi,834p.:ill.; _c 24cm.
650			_aData transmission systems
650			_aData communication systems
650			_aComputer communication systems
942			_cBK
999			_c81077 _d81077