Columbia subject headings:
Colombia--Population--History.
Soto (Colombia : Province)--Population--History.
Urbanization--Colombia--History.
Urbanization--Colombia--Soto (Province)--History.
Harvard subject headings:
Colombia--Population--History.
Soto (Colombia : Province)--Population--History.
Urbanization--Colombia--History.
Urbanization--Colombia--Soto (Province)--History.
Princeton subject headings: