000			00482nam a22001577a 4500
008			201014b ||||| |||| 00| 0 eng d
020			_a9788120350830
050			_aTK5102.5.V57
100			_aVISWANATHAN, Thiagarajan. _98312
245			_aTelecommunication Switching Systems And Networks
250			_a2nd ed.
260			_aNew Delhi _bPHI Learning Private Limited _c2015.
300			_axix, '620.
650			_aTechnology _vTelecommunication- switching System _98313
942			_cBK
999			_c5816 _d5816