APA (7 वां संस्करण) प्रशस्ति पत्र
Natali, D. (2008). Pensions in Europe, European pensions: The evolution of pension policy at national and supranational level. P.I.E. Peter Lang.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Natali, David. Pensions in Europe, European Pensions: The Evolution of Pension Policy at National and Supranational Level. New York: P.I.E. Peter Lang, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Natali, David. Pensions in Europe, European Pensions: The Evolution of Pension Policy at National and Supranational Level. P.I.E. Peter Lang, 2008.
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