001: 32573
003: Starlibrary PMS 4.5
005: 20180430
020: ^a0-13-142492-0
066: ^aLe.D
072: ^aIntroduction
082: ^a621.382
100: ^aLeon W. Couch
240: ^aDigital and Analog Communication Systems
245: ^aDigital and Analog Communication Systems
260: ^c2007
650: ^a Signals And Spectra