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Direct and Work Relief and Federal Work Programs in Allegheny County, 1920-1941 ...
Health and Welfare Association of Allegheny County. Bureau of Social ResearchRalph Carr Fletcher
出版Bureau of Social Research, Federation of social agencies of Pittsburgh and Allegheny county, 1942
URLhttp://books.google.com.hk/books?id=FrY4PQAACAAJ&hl=&source=gbs_api