(2007). World health statistics 2007. World Health Orgnization.
Chicago (17e ed.) BronvermeldingWorld Health Statistics 2007. Paris: World Health Orgnization, 2007.
MLA (9e ed.) BronvermeldingWorld Health Statistics 2007. World Health Orgnization, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.