000			00332nam a22001337a 4500
020			_a9780070483903
082			_a621.38 ALI
100			_aAli R Syed
245			_aDigital Switching Systems ,System Reliability and Analysis
260			_aNew Delhi _bMcGraw Hill _c2018
300			_a219
650			_aApplied physics
942			_cBK
999			_c7647 _d7647