Holzmann, R. (2009). Social protection and labor at the World Bank, 2000-08. World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHolzmann, Robert. Social Protection and Labor at the World Bank, 2000-08. Washington D.C.: World Bank, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHolzmann, Robert. Social Protection and Labor at the World Bank, 2000-08. World Bank, 2009.