000			00356nam a2200133Ia 4500
008			140317s9999 xx 000 0 und d
082			_a1.642
100			_aJain, S.
245		2	_aA level made simple data communication and computer networks. 2nd rev. ed.
260			_aNew Delhi _bBPB Pub. _c2007
300			_a328
700			_aJain, M
942			_2ddc _cBK
999			_c16551 _d16551