Columbia subject headings:
Agriculture--Economic aspects--Statistics--Periodicals.
Food prices--United States--Statistics--Periodicals.
Produce trade--Prices--United States--Statistics--Periodicals.
Harvard subject headings:
Agriculture--Economic aspects--Statistics--Periodicals.
Food prices--United States--Statistics--Periodicals.
Produce trade--Prices--United States--Statistics--Periodicals.
Princeton subject headings: