000			00440nam a2200169Ia 4500
008			230929s2012||||xx |||||||||||||| ||und||
020			_a9788120307131
082			_a621.382 _bVIS-T
100			_aViswanatham, Thiagarajan
245		0	_aTelecommunication Switching Systems and Networks
250			_a5th
260			_aNew Delhi _bPHI _c2012
300			_a583
650			_aCommunication System
650			_aTelecommunication
942			_cBK
999			_c3277 _d3277