Columbia subject headings:
Iraq--Commerce--20th century.
Iraq--Economic conditions--20th century.
Iraq--History--20th century.
Harvard subject headings:
Iraq--Commerce--20th century.
Iraq--Economic conditions--20th century.
Iraq--History--20th century.
Turkey--Commerce--History.
Turkey--History--Ottoman Empire, 1288-1918.
Princeton subject headings:
Iraq--Commerce--20th century.
Iraq--Economic conditions--20th century.
Iraq--History--20th century.