Columbia subject headings:
United States--Foreign relations--2001-2009.
United States. Department of State--Appropriations and expenditures.
Harvard subject headings:
United States--Foreign relations--2001-2009.
United States. Department of State--Appropriations and expenditures.
Princeton subject headings:
United States--Foreign relations--2001-2009.
United States. Department of State--Appropriations and expenditures.