Ringold, D., & Kasek, L. (2007). Social assistance in the new EU member states: Strengthening performance and labor market incentives. World Bank.
Чикаго стиль цитування (17-те видання)Ringold, Dena, та Leszek Kasek. Social Assistance in the New EU Member States: Strengthening Performance and Labor Market Incentives. Washington, D.C.: World Bank, 2007.
Стиль цитування MLA (9-ме видання)Ringold, Dena, та Leszek Kasek. Social Assistance in the New EU Member States: Strengthening Performance and Labor Market Incentives. World Bank, 2007.