000			00430nam a2200145Ia 4500
008			241226s9999 xx 000 0 und d
020			_a81-224-1950-X
082			_a621.382 2 _bGNA
100			_aGnanasivam, P
245		0	_aTelecommunication switching and net works,-second edition
260			_aNew Delhi : _bNew Age Publication, _c2007.
300			_aVI,324
365			_a150
650			_aElectrical Electronics Communication,
999			_c143675 _d143675