APA-ийн эшлэл(7 дахь хэвлэлт)

Radl, J. (2013). Retirement timing and social stratification: A comparative study of labor market exit and age norms in Western Europe. Versita.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Radl, Jonas. Retirement Timing and Social Stratification: A Comparative Study of Labor Market Exit and Age Norms in Western Europe. London: Versita, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Radl, Jonas. Retirement Timing and Social Stratification: A Comparative Study of Labor Market Exit and Age Norms in Western Europe. Versita, 2013.