Não informado. (1989). Barclays Economic Review. Barclays Bank.
Chicago (17e ed.) BronvermeldingNão informado. Barclays Economic Review. London: Barclays Bank, 1989.
MLA (8e ed.) BronvermeldingNão informado. Barclays Economic Review. Barclays Bank, 1989.
Let op: Deze citaties zijn niet altijd 100% accuraat.