Ringold, D., & Kasek, L. (2007). Social assistance in the new EU member states: Strengthening performance and labor market incentives. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ringold, Dena, و Leszek Kasek. Social Assistance in the New EU Member States: Strengthening Performance and Labor Market Incentives. Washington, D.C: World Bank, 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ringold, Dena, و Leszek Kasek. Social Assistance in the New EU Member States: Strengthening Performance and Labor Market Incentives. World Bank, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.