Columbia subject headings:
Farmers--Services for--United States.
Occupational retraining--United States.
Harvard subject headings:
Ex-farmers--Services for--United States.
Farmers--Services for--United States.
Unemployed--Services for--United States
Princeton subject headings:
Ex-farmers--Services for--United States.
Farmers--Services for--United States.
Unemployed--Services for--United States.