APA (7th ed.) Zitazioa

ProQuest (Firm). (2012). OECD pensions outlook, 2012. OECD.

Chicago Style (17th ed.) Zitazioa

ProQuest (Firm). OECD Pensions Outlook, 2012. Paris: OECD, 2012.

MLA (9th ed.) Zitazioa

ProQuest (Firm). OECD Pensions Outlook, 2012. OECD, 2012.