Columbia subject headings:
Charities--Bibliography.
Government publications--United States--Bibliography.
Unemployed--Bibliography.
Unemployment--Bibliography.
Harvard subject headings:
Charities--Bibliography.
Charities--United States--Bibliography.
Government publications--United States--Bibliography.
Unemployed--Bibliography.
Unemployed--Services for--United States--Bibliography.
Unemployment--United States--Bibliography.
Unemployment--United States--States--Bibliography.
Princeton subject headings: