توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Vittas, D. (1997). The Argentine pension reform and its relevance for Eastern Europe. World Bank, Financial Sector Development Department.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Vittas, Dimitri. The Argentine Pension Reform and Its Relevance for Eastern Europe. Washington, D.C: World Bank, Financial Sector Development Department, 1997.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Vittas, Dimitri. The Argentine Pension Reform and Its Relevance for Eastern Europe. World Bank, Financial Sector Development Department, 1997.