Columbia subject headings:
Harvard subject headings:
City planning--History--Congresses.
Classification--History--Congresses.
Library architecture--History--Congresses.
Museum architecture--History--Congresses.
Space (Architecture)--History--Congresses.
Princeton subject headings:
City planning--History--Congresses.
Classification--History--Congresses.
Library architecture--History--Congresses.
Museum architecture--History--Congresses.
Space (Architecture)--History--Congresses.