Columbia subject headings:
Aerial photographs--Archival resources.
Architecture--Archival resources.
Cartography--United States--Archival resources.
Engineering drawings--Archival resources.
United States. National Archives and Records Administration--Management.
Harvard subject headings:
Aerial photography--Archival resources.
Architecture--Archival resources
Cartography--United States--Archival resources.
Engineering drawings--Archival resources.
United States. National Archives and Records Administration--Management.
Princeton subject headings:
Aerial photography--Archival resources.
Architecture--Archival resources.
Cartography--United States--Archival resources.
Engineering drawings--Archival resources.
United States. National Archives and Records Administration--Management.