Não informado. (1953). Quarterly economic review of Nigeria. Economist Intelligence Unit.
Chicago (17e ed.) BronvermeldingNão informado. Quarterly Economic Review of Nigeria. London: Economist Intelligence Unit, 1953.
MLA (8e ed.) BronvermeldingNão informado. Quarterly Economic Review of Nigeria. Economist Intelligence Unit, 1953.
Let op: Deze citaties zijn niet altijd 100% accuraat.