Columbia subject headings:
Historic buildings--United States--Periodicals.
Historic preservation--United States--Periodicals.
Historic sites--United States--Periodicals.
Harvard subject headings:
Historic buildings--United States--Periodicals.
Historic preservation--United States--Periodicals.
Historic sites--United States--Periodicals.
Princeton subject headings:
Historic buildings--United States--Periodicals.
Historic preservation--United States--Periodicals.
Historic sites--United States--Periodicals.
Periodicals.