Columbia subject headings:
Cities and towns--Developing countries--Growth--Mathematical models.
Cities and towns--Growth--Mathematical models.
Equilibrium (Economics)
Harvard subject headings:
Cities and towns--Developing countries--Growth--Mathematical models.
Cities and towns--Growth--Mathematical models
Equilibrium (Economics)
Princeton subject headings:
Cities and towns--Developing countries--Growth--Mathematical models.
Cities and towns--Growth--Mathematical models.
Equilibrium (Economics)