Columbia subject headings:
Dallas (Tex.)--Economic conditions.
Fort Worth (Tex.)--Economic conditions.
Houston (Tex.)--Economic conditions.
Harvard subject headings:
Dallas (Tex.)--Economic conditions.
Fort Worth (Tex.)--Economic conditions.
Houston (Tex.)--Economic conditions.
Princeton subject headings:
Dallas (Tex.)--Economic conditions.
Fort Worth (Tex.)--Economic conditions.
Houston--Economic conditions.