APA (7th ed.) Citation

Couch, L. W. (1993). Digital and analog communication systems (4. ed.). Macmillan [u.a.].

Chicago Style (17th ed.) Citation

Couch, Leon W. Digital and Analog Communication Systems. 4. ed. New York, NY: Macmillan [u.a.], 1993.

MLA (9th ed.) Citation

Couch, Leon W. Digital and Analog Communication Systems. 4. ed. Macmillan [u.a.], 1993.