Columbia subject headings:
Customs administration--Turkey--History.
International trade.
Tariff--Turkey.
Turkey--Commerce--History.
Turkey--Economic policy.
Turkey--Foreign economic relations.
Harvard subject headings:
Customs administration--Turkey--History.
International trade
Tariff--Turkey.
Turkey--Commerce--History.
Turkey--Economic policy.
Turkey--Foreign economic relations.
Princeton subject headings:
Customs administration--Turkey--History.
International trade.
Tariff--Turkey.
Turkey--Commerce--History.
Turkey--Economic policy.
Turkey--Foreign economic relations.