World hospitals. Suplemento español: World hosp. Supl. esp. London: International Hospital Federation.
Chicago Style aipamenaWorld Hospitals. Suplemento Español: World Hosp. Supl. Esp. London: International Hospital Federation.
MLA aipamenaWorld Hospitals. Suplemento Español: World Hosp. Supl. Esp. London: International Hospital Federation.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.