APA (7th ed.) Zitazioa
(2016). Life annuity products and their guarantees. OECD.
Chicago Style (17th ed.) Zitazioa
Life Annuity Products and Their Guarantees. Paris: OECD, 2016.
MLA (9th ed.) Zitazioa
Life Annuity Products and Their Guarantees. OECD, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.