Παραπομπή APA
Sinn, H. (1997). The value of children and immigrants in a pay-as-you-go pension system: A proposal for a partial transition to a funder system. London: Centre for Economic Policy Research.
Παραπομπή Chicago StyleSinn, Hans-Werner. The Value of Children and Immigrants in a Pay-as-you-go Pension System: A Proposal for a Partial Transition to a Funder System. London: Centre for Economic Policy Research, 1997.
Παραπομπή MLASinn, Hans-Werner. The Value of Children and Immigrants in a Pay-as-you-go Pension System: A Proposal for a Partial Transition to a Funder System. London: Centre for Economic Policy Research, 1997.
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