Columbia subject headings:
Architectural surveys--United States--States.
Architecture--Conservation and restoration--United States--States.
Architecture--United States--States--Archival resources.
Harvard subject headings:
Architectural surveys--United States--States.
Architectural surveys--United States.
Architecture--United States--Details--Archival resources.
Architecture--United States--States--Archival resources.
Architecture--United States--States--Conservation and restoration.
Princeton subject headings:
Architectural surveys--United States.
Architecture--United States--Details--Archival resources.