Columbia subject headings:
Harvard subject headings:
Agriculture and state--Congresses.
Agriculture--Economic aspects--Congresses
General Agreement on Tariffs and Trade (Organization)--Congresses.
International economic relations--Congresses
Produce trade--Government policy--Congresses.
Princeton subject headings:
Agriculture and state--Congresses.
General Agreement on Tariffs and Trade (Organization)--Congresses.
International economic relations--Congresses.
Produce trade--Government policy--Congresses.