Columbia subject headings:
Harvard subject headings:
City planning--Exhibitions
City planning--Great Britain--Congresses.
City planning--Great Britain--Exhibitions.
Housing--Great Britain--Congresses.
Housing--Great Britain--Exhibitions.
Princeton subject headings:
City planning--Exhibitions.
City planning--Great Britain--Congresses.
City planning--Great Britain--Exhibitions.
Housing--Great Britain--Congresses.
Housing--Great Britain--Exhibitions.