Columbia subject headings:
Harvard subject headings:
Agriculture--Economic aspects--United States
Income distribution--United States.
Rural industries--United States.
United States--Economic conditions--1981-2001--Regional disparities.
United States--Rural conditions.
Princeton subject headings:
Agriculture--Economic aspects--United States.
Income distribution--United States.
Rural industries--United States.
United States--Economic conditions--1981---Regional disparities.
United States--Rural conditions.