Columbia subject headings:
Building--Congresses.
Building--France--Congresses.
Construction industry--Congresses.
Construction industry--France--Congresses.
Harvard subject headings:
Architecture--History--Congresses.
Architecture--Philosophy--Congresses
Building materials--History--Congresses.
Building--History--Congresses.
Princeton subject headings:
Architecture--History--Congresses.
Architecture--Philosophy--Congresses.
Building materials--History--Congresses.
Building--History--Congresses.