Columbia subject headings:
Harvard subject headings:
Cities and towns--Developing countries
City and town life--Developing countries.
Developing countries--Social conditions.
Housing policy--Developing countries.
Squatters--Developing countries.
Urbanization--Developing countries
Princeton subject headings:
Developing countries--Social conditions.
Homeless persons--Developing countries.
Housing and health--Developing countries.
Low-income housing--Developing countries.
Squatter settlements--Developing countries.