Columbia subject headings:
Architecture, Modern--19th century--Congresses.
Architecture, Modern--20th century--Congresses.
Eclecticism in architecture--Congresses.
Harvard subject headings:
Architects--Congresses.
Architecture, Modern--19th century--Congresses.
Eclecticism in architecture--Congresses.
Princeton subject headings:
Architecture, Modern--19th century--Congresses.
Architecture, Modern--20th century--Congresses.
Eclecticism in architecture--Congresses.