000			00345nam a2200121Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
082			_a005.73 AMB
100			_aAmbiger, Renuka
245		0	_aData communication and computer networks
260			_aEastern book promoters _bGADAG _c2009
300			_b170
650			_aDATA COMMUNICATION _91124
999			_c180216 _d180216