Columbia subject headings:
Appalachian Region, Southern--Economic conditions.
Appalachian Region, Southern--Social conditions.
Appalachian Region--Economic conditions.
Appalachian Region--Social conditions.
Harvard subject headings:
Appalachian Region, Southern--Economic conditions.
Appalachian Region, Southern--Social conditions.
Appalachian Region--Economic conditions.
Appalachian Region--Social conditions.
Princeton subject headings:
Appalachian Region--Economic conditions.
Appalachian Region--Social conditions.