WHO. (1995). Epidemiology and preventation of cardivascular diseases in elderly people. Geneva.
Chicago Style aipamenaWHO. Epidemiology and Preventation of Cardivascular Diseases in Elderly People. Geneva, 1995.
MLA aipamenaWHO. Epidemiology and Preventation of Cardivascular Diseases in Elderly People. Geneva, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.