Columbia subject headings:
Historic buildings--Conservation and restoration--United States--Periodicals--Indexes.
Historic sites--Conservation and restoration--United States--Periodicals--Indexes.
Harvard subject headings:
Historic buildings--Conservation and restoration--United States--Periodicals--Indexes.
Historic sites--Conservation and restoration--United States--Periodicals--Indexes.
United States--History--Periodicals--Indexes.
Princeton subject headings:
Architecture--United States--Conservation and restoration--Periodicals--Indexes.
Historic buildings--United States--Conservation and restoration--Periodicals--Indexes.
United States--History, Local--Periodicals--Indexes.
University of Maryland, College Park. National Trust for Historic Preservation Library--Catalogs.