APA (7th ed.) Zitazioa

(1979). The Oxford dictionary of quotations (3th ed.). OUP.

Chicago Style (17th ed.) Zitazioa

The Oxford Dictionary of Quotations. 3th ed. Oxford: OUP, 1979.

MLA (9th ed.) Zitazioa

The Oxford Dictionary of Quotations. 3th ed. OUP, 1979.