APA (7th ed.) Zitazioa
(2001). Toward a sustainable energy future. OECD.
Chicago Style (17th ed.) Zitazioa
Toward a Sustainable Energy Future. Paris, Cedex, France: OECD, 2001.
MLA (9th ed.) Zitazioa
Toward a Sustainable Energy Future. OECD, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.