Connor, F. R. Signals/ [by] F. R. Connor. - London : Edward Arnold, 1972. - [1], vii, 110 p. : ill. ; 22 cm. - His Introductory topics in electronics and telecommunication . ISBN: 0713132620 Subjects--Index Terms: Signal theory (Telecommunication) Dewey Class. No.: 621.38/043 / CON