Não informado. (2000). The Least developed countries. United Nations.
Chicago (17e ed.) BronvermeldingNão informado. The Least Developed Countries. Geneva, Suíça: United Nations, 2000.
MLA (8e ed.) BronvermeldingNão informado. The Least Developed Countries. United Nations, 2000.
Let op: Deze citaties zijn niet altijd 100% accuraat.