APA (7th ed.) Zitazioa
(2011). Facts and figures on population and development, 2011. NCPD.
Chicago Style (17th ed.) Zitazioa
Facts and Figures on Population and Development, 2011. Nairobi: NCPD, 2011.
MLA (9th ed.) Zitazioa
Facts and Figures on Population and Development, 2011. NCPD, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.