Ringold, D., & Kasek, L. (2007). Social assistance in the new EU member states: Strengthening performance and labor market incentives. World Bank.
Lua i Stíl Chicago (17ú heag.)Ringold, Dena, agus Leszek Kasek. Social Assistance in the New EU Member States: Strengthening Performance and Labor Market Incentives. Washington, D.C.: World Bank, 2007.
Lua MLA (9ú heag.)Ringold, Dena, agus Leszek Kasek. Social Assistance in the New EU Member States: Strengthening Performance and Labor Market Incentives. World Bank, 2007.
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