APA (7th ed.) Zitazioa
(1976). A supplement to the Oxford English dictionary. OUP.
Chicago Style (17th ed.) Zitazioa
A Supplement to the Oxford English Dictionary. Oxford: OUP, 1976.
MLA (9th ed.) Zitazioa
A Supplement to the Oxford English Dictionary. OUP, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.