Columbia subject headings:
Agriculture and state--United States.
General Agreement on Tariffs and Trade (Organization)
Produce trade--Government policy--United States.
Produce trade--Government policy.
Tariff on farm produce.
United States--Foreign economic relations.
Harvard subject headings:
Agriculture and state--United States.
General Agreement on Tariffs and Trade (Organization)
Produce trade--Government policy
Produce trade--Government policy--United States
Tariff on farm produce.
United States--Foreign economic relations.
Princeton subject headings:
Agriculture and state--United States.
General Agreement on Tariffs and Trade (Organization)
Produce trade--Government policy--United States.
Produce trade--Government policy.
Tariff on farm produce.
United States--Foreign economic relations.