APA (7th ed.) Zitazioa

(2004). Reviews of national policies for education: Bulgaria. OECD.

Chicago Style (17th ed.) Zitazioa

Reviews of National Policies for Education: Bulgaria. Paris, France: OECD, 2004.

MLA (9th ed.) Zitazioa

Reviews of National Policies for Education: Bulgaria. OECD, 2004.