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