000			00357nam a2200133Ia 4500
008			220120s9999||||xx |||||||||||||| ||und||
020			_a9788131732342
100			_aBlack, Uyless, D _91123
245		0	_aComputer networks
250			_a2nd
260			_aPrentice hall of india _bNoida _c2005
300			_a709 _b415
650			_aELECTRONICS AND COMMUNICATIONS
999			_c132459 _d132459