Grogger, J. (2001). The effects of time limits and other policy changes on welfare use, work, and income among female-headed families. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Grogger, Jeffrey. The Effects of Time Limits and Other Policy Changes on Welfare Use, Work, and Income Among Female-headed Families. Cambridge, Mass: National Bureau of Economic Research, 2001.
Lua MLA (9ú heag.)Grogger, Jeffrey. The Effects of Time Limits and Other Policy Changes on Welfare Use, Work, and Income Among Female-headed Families. National Bureau of Economic Research, 2001.
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