APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, Gruber, J., & Wise, D. A. (2010). Social security programs and retirement around the world: The relationship to youth employment. University of Chicago Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, Jonathan Gruber, और David A. Wise. Social Security Programs and Retirement Around the World: The Relationship to Youth Employment. Chicago ; London: University of Chicago Press, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, et al. Social Security Programs and Retirement Around the World: The Relationship to Youth Employment. University of Chicago Press, 2010.
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