WHO. (1995). Epidemiology and preventation of cardivascular diseases in elderly people. Geneva.
Čikaški stil citiranjaWHO. Epidemiology and Preventation of Cardivascular Diseases in Elderly People. Geneva, 1995.
MLA način citiranjaWHO. Epidemiology and Preventation of Cardivascular Diseases in Elderly People. Geneva, 1995.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.