(1991). Demographic and Health Surveys World Conference (1991: Washington, D.C.). IRD/Macro International.
Chicago (17e ed.) BronvermeldingDemographic and Health Surveys World Conference (1991: Washington, D.C.). Columbia, MD: IRD/Macro International, 1991.
MLA (9e ed.) BronvermeldingDemographic and Health Surveys World Conference (1991: Washington, D.C.). IRD/Macro International, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.