APA (7th ed.) Zitazioa
Gordon, G. N. (1972). Videocassette technology in American education. Educational Technology.
Chicago Style (17th ed.) Zitazioa
Gordon, George N. Videocassette Technology in American Education. New Jersey: Educational Technology, 1972.
MLA (9th ed.) Zitazioa
Gordon, George N. Videocassette Technology in American Education. Educational Technology, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.