000			00439nam a22001571a 4500
020			_a9788131804629
082			_a004.6 _bAMU/E
100			_aAmutha Jeevakumari S A
245			_aElements of data communication and networks/ _cby Amutha Jeevakumari S A
260			_aNew Delhi: _bUniversity Science Press, _c2009.
300			_a225p.
650			_aNetworking
650			_aData Communications
650			_aComputer Science
942			_cBK
999			_c12237 _d12237