Columbia subject headings:
General Agreement on Tariffs and Trade (Organization)--Periodicals.
Tariff--Periodicals.
Trade regulation--Periodicals.
World Trade Organization--Periodicals.
Harvard subject headings:
General Agreement on Tariffs and Trade (Organization)--Periodicals.
Tariff--Periodicals.
Trade regulation--Periodicals.
World Trade Organization--Periodicals.
Princeton subject headings:
General Agreement on Tariffs and Trade (Organization)--Periodicals.
Periodicals.
Tariff--Periodicals.
Trade regulation--Periodicals.
World Trade Organization--Periodicals.