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Washington, DC: U.S. Department of Transportation, Assistant Secretary for Policy and International Affairs, 1980
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New York [u.a.]: Penguin Books, 2010
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Westport, Conn. [u.a.]: Greenwood Press, 20XX-
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New York, NY: Random House, 2010
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London [u.a.]: Belhaven Press, 1991
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Lanham, Md. [u.a.]: Rowman & Littlefield, c 1999
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Durham, NC [u.a.]: Duke Univ. Press, 1997
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New York [u.a.]: Berghahn Books, 2001
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Chapel Hill: The University of North Carolina Press, 2012
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Kalamazoo, Mich.: W.E. Upjohn Institute for Employment Research, 2009
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[Washington, D.C]: World Bank, 2009 ; 2009
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Boston, MA: Academic Studies Press, [2011] ; [Online-Ausgabe]
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[Washington, D.C]: World Bank, [2005] ; Online-Ausg.
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[Siena]: Università di Siena, [2015]
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Berlin: De Gruyter Mouton, 2018
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[New York]: s.n, 1813
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New York, NY: Oxford University Press, 2021
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Cambridge, Mass: National Bureau of Economic Research, 2021
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New York, NY: New York University Press, [2017] ; [Online-Ausgabe]