Columbia subject headings:
Architectural design--Research--Congresses.
Architecture--Environmental aspects--Research--Congresses.
City planning--Environmental aspects--Congresses.
Imagination--Congresses.
Harvard subject headings:
Architectural design--Research--Congresses.
Architecture--Environmental aspects--Research--Congresses.
City planning--Environmental aspects--Congresses
Imagination--Congresses.
Princeton subject headings:
Architectural design--Research--Congresses.
Architecture--Environmental aspects--Research--Congresses.
City planning--Environmental aspects--Congresses.
Imagination--Congresses.