APA (7th ed.) Zitazioa
Rao, U. (1991). Educational technology. Himalaya.
Chicago Style (17th ed.) Zitazioa
Rao, Usher. Educational Technology. New Delhi: Himalaya, 1991.
MLA (9th ed.) Zitazioa
Rao, Usher. Educational Technology. Himalaya, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.