Columbia subject headings:
Architecture--Conservation and restoration--Congresses.
Le Corbusier, 1887-1965--Congresses.
Harvard subject headings:
Architecture--Conservation and restoration--Congresses
Le Corbusier, 1887-1965--Congresses.
Princeton subject headings:
Architecture--Conservation and restoration--Congresses.
Le Corbusier, 1887-1965--Congresses.