Columbia subject headings:
Franklin County (N.Y.)--Economic conditions.
Jefferson County (N.Y.)--Economic conditions.
Lewis County (N.Y.)--Economic conditions.
Saint Lawrence County (N.Y.)--Economic conditions.
Harvard subject headings:
Franklin County (N.Y.)--Economic conditions.
Jefferson County (N.Y.)--Economic conditions.
Lewis County (N.Y.)--Economic conditions.
Saint Lawrence County (N.Y.)--Economic conditions.
Princeton subject headings: