APA (7th ed.) Zitazioa
Zannes, E. (1982). Communication: The widening circle. Addison Wesley.
Chicago Style (17th ed.) Zitazioa
Zannes, Estelle. Communication: The Widening Circle. Massachusettts: Addison Wesley, 1982.
MLA (9th ed.) Zitazioa
Zannes, Estelle. Communication: The Widening Circle. Addison Wesley, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.