Heisig, J. P. (2015). Late-career Risks in Changing Welfare States: Comparing Germany and the United States since the 1980s. Amsterdam University Press.
Lua i Stíl Chicago (17ú heag.)Heisig, Jan Paul. Late-career Risks in Changing Welfare States: Comparing Germany and the United States Since the 1980s. Amsterdam: Amsterdam University Press, 2015.
Lua MLA (9ú heag.)Heisig, Jan Paul. Late-career Risks in Changing Welfare States: Comparing Germany and the United States Since the 1980s. Amsterdam University Press, 2015.
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