Não informado. (2018). Population Reports. Johns Hopkins University, Population Information Program.
Chicago (17e ed.) BronvermeldingNão informado. Population Reports. Baltimore, Md: Johns Hopkins University, Population Information Program, 2018.
MLA (8e ed.) BronvermeldingNão informado. Population Reports. Johns Hopkins University, Population Information Program, 2018.
Let op: Deze citaties zijn niet altijd 100% accuraat.