APA (7th ed.) Zitazioa
World Health Organization, ebrary, Inc, Mathers, C., Fat, D. M., & Boerma, J. T. (2008). The global burden of disease: 2004 update. World Health Organization.
Chicago Style (17th ed.) Zitazioa
World Health Organization, Inc ebrary, Colin Mathers, Doris Ma Fat, eta J. T. Boerma. The Global Burden of Disease: 2004 Update. Geneva, Switzerland: World Health Organization, 2008.
MLA (9th ed.) Zitazioa
World Health Organization, et al. The Global Burden of Disease: 2004 Update. World Health Organization, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.