Columbia subject headings:
Cities and towns, Ancient--Asia.
Cities and towns, Ancient--Europe.
Cities and towns, Medieval--Asia.
Cities and towns, Medieval--Europe.
Cities and towns--Asia--History.
Cities and towns--Asia.
Cities and towns--Europe--History.
Cities and towns--Europe.
Urbanization--Asia.
Urbanization--Europe.
Harvard subject headings:
Cities and towns--Asia--History.
Cities and towns--Europe--History
Urbanization--Asia--History.
Urbanization--Europe--History
Princeton subject headings:
Cities and towns--Asia.
Cities and towns--Europe.
Urbanization--Asia.
Urbanization--Europe.