APA (7 वां संस्करण) प्रशस्ति पत्र

Holzmann, R. (2009). Aging population, pension funds, and financial markets: Regional perspectives and global challenges for central, eastern and southern Europe. World Bank.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Holzmann, Robert. Aging Population, Pension Funds, and Financial Markets: Regional Perspectives and Global Challenges for Central, Eastern and Southern Europe. Washington, D.C: World Bank, 2009.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Holzmann, Robert. Aging Population, Pension Funds, and Financial Markets: Regional Perspectives and Global Challenges for Central, Eastern and Southern Europe. World Bank, 2009.

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