APA (7th ed.) Zitazioa
DeFrancis, J. Visible speech: The diverse oneness of writing systems.
Chicago Style (17th ed.) Zitazioa
DeFrancis, John. Visible Speech: The Diverse Oneness of Writing Systems.
MLA (9th ed.) Zitazioa
DeFrancis, John. Visible Speech: The Diverse Oneness of Writing Systems.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.