Columbia subject headings:
City planning.
Structuralism.
Harvard subject headings:
City planning--History--20th century--Congresses.
City planning--History--21st century--Congresses.
Structuralism (Architecture)--Congresses.
Princeton subject headings:
City planning--History--20th century--Congresses.
City planning--History--21st century--Congresses.
Structuralism--Congresses.