Columbia subject headings:
Romania--Commerce--United States.
Tariff--Law and legislation--United States.
United States--Commerce--Romania.
Harvard subject headings:
Romania--Commerce--United States.
Tariff--Law and legislation--United States.
United States--Commerce--Romania.
Princeton subject headings:
Romania--Commerce--United States.
Tariff--Law and legislation--United States.
United States--Commerce--Romania.