Columbia subject headings:
Agricultural price supports--United States--Periodicals.
Agriculture--Economic aspects--United States--Periodicals.
Commodity Credit Corporation--Periodicals.
Farm income--United States--Periodicals.
Harvard subject headings:
Princeton subject headings:
Agricultural price supports--United States--Periodicals.
Agriculture--Economic aspects--United States--Periodicals.
Commodity Credit Corporation--Periodicals.
Farm income--United States--Periodicals.
Periodicals.