001: 76528
003: Starlibrary PMS 4.5
005: 20180420
020: ^a81-219-0476-5
066: ^aAn.p
072: ^aSignal
082: ^a621.382
100: ^aAnokh Singh
240: ^aprinciples communication engineering
245: ^aprinciples communication engineering
260: ^c2013
650: ^a Switched Communication Systems