APA (7th ed.) Zitazioa

Sproule, J. (1981). Communication today. Scott,Foresman.

Chicago Style (17th ed.) Zitazioa

Sproule, J.Michael. Communication Today. Illinois: Scott,Foresman, 1981.

MLA (9th ed.) Zitazioa

Sproule, J.Michael. Communication Today. Scott,Foresman, 1981.