Columbia subject headings:
Federal aid to historic sites--United States.
Historic buildings--Conservation and restoration--United States.
Historic buildings--United States--Conservation and restoration.
Historic sites--Conservation and restoration--United States.
Historic sites--United States--Conservation and restoration.
Harvard subject headings:
Federal aid to historic sites--United States.
Historic buildings--Conservation and restoration--United States
Historic preservation--United States
Historic sites--Conservation and restoration--United States
Princeton subject headings: