APA (7th ed.) Zitazioa
Monochrome and colour television / Gulati,R.R.
Chicago Style (17th ed.) Zitazioa
Monochrome and Colour Television / Gulati,R.R.
MLA (9th ed.) Zitazioa
Monochrome and Colour Television / Gulati,R.R.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.