Beetsma, R. M. W. J., Oksanen, H., & European Commission : Directorate-General for Economic and Financial Affairs. (2007). Pension systems, ageing and the stability and growth pact. Brussels- Belgium: European Comission: Directorate-General for Economic and Financial Affairs.
Παραπομπή Chicago StyleBeetsma, Roel M. W. J., Heikki Oksanen, and European Commission : Directorate-General for Economic and Financial Affairs. Pension Systems, Ageing and the Stability and Growth Pact. Brussels- Belgium: European Comission: Directorate-General for Economic and Financial Affairs, 2007.
Παραπομπή MLABeetsma, Roel M. W. J., Heikki Oksanen, and European Commission : Directorate-General for Economic and Financial Affairs. Pension Systems, Ageing and the Stability and Growth Pact. Brussels- Belgium: European Comission: Directorate-General for Economic and Financial Affairs, 2007.