Columbia subject headings:
Cities and towns in art--History.
Cities and towns in literature--History.
Cities and towns--History.
City planning--History.
Metropolitan areas--History.
Sociology, Urban.
Harvard subject headings:
Cities and towns--Growth--History--20th century--Congresses.
City planning--History--20th century--Congresses.
Metropolitan areas--History--20th century--Congresses.
Sociology, Urban
Urbanization--History--20th century--Congresses.
Princeton subject headings:
Cities and towns in art.
City planning--History.
Metropolitan areas--History.