Sinn, h. (1998). The pay-as-you-go pension system as a fertility insurance and enforcement device. National Bureau of Economic Research.
Chicago (17e ed.) BronvermeldingSinn, hans-Werner. The Pay-as-you-go Pension System as a Fertility Insurance and Enforcement Device. Cambridge: National Bureau of Economic Research, 1998.
MLA (8e ed.) BronvermeldingSinn, hans-Werner. The Pay-as-you-go Pension System as a Fertility Insurance and Enforcement Device. National Bureau of Economic Research, 1998.
Let op: Deze citaties zijn niet altijd 100% accuraat.