APA
Sinn H., National Bureau Of Economic Research, . (1997). The value of children and immigrants in a pay-as-you-go-pension system: A propasal for a partial transition to a funded system. Cambridge, MA: NBER.
Chicago
Sinn Hans-Werner, National Bureau Of Economic Research, . 1997. The value of children and immigrants in a pay-as-you-go-pension system: A propasal for a partial transition to a funded system. Cambridge, MA: NBER.
Harvard
Sinn H., National Bureau Of Economic Research, . (1997). The value of children and immigrants in a pay-as-you-go-pension system: A propasal for a partial transition to a funded system. Cambridge, MA: NBER.
MLA
Sinn Hans-Werner, National Bureau Of Economic Research, . The value of children and immigrants in a pay-as-you-go-pension system: A propasal for a partial transition to a funded system. Cambridge, MA: NBER. 1997.