Columbia subject headings:
Cities and towns--Growth--Congresses.
High technology industries--Location--Congresses.
Industrial districts--Congresses.
Harvard subject headings:
Cities and towns--Growth--Congresses
High technology industries--Location--Congresses.
Industrial districts--Congresses.
Princeton subject headings:
Cities and towns--Growth--Congresses.
High technology industries--Location--Congresses.
Industrial districts--Congresses.