Não informado. (1987). AEI economist. American Enterprise Institute for Public Policy Research.
Chicago (17e ed.) BronvermeldingNão informado. AEI Economist. Washington: American Enterprise Institute for Public Policy Research, 1987.
MLA (8e ed.) BronvermeldingNão informado. AEI Economist. American Enterprise Institute for Public Policy Research, 1987.
Let op: Deze citaties zijn niet altijd 100% accuraat.