APA (7 वां संस्करण) प्रशस्ति पत्र
Radl, J. (2013). Retirement timing and social stratification: A comparative study of labor market exit and age norms in Western Europe. Versita.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Radl, Jonas. Retirement Timing and Social Stratification: A Comparative Study of Labor Market Exit and Age Norms in Western Europe. London: Versita, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Radl, Jonas. Retirement Timing and Social Stratification: A Comparative Study of Labor Market Exit and Age Norms in Western Europe. Versita, 2013.
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