Columbia subject headings:
Produce trade--Tanzania--Dar es Salaam.
Urbanization--Tanzania--Dar es Salaam.
Harvard subject headings:
Dar es Salaam (Tanzania)--Economic conditions.
Dar es Salaam (Tanzania)--Social conditions.
Food supply--Tanzania--Dar es Salaam.
Produce trade--Tanzania--Dar es Salaam.
Urbanization--Tanzania--Dar es Salaam.
Princeton subject headings:
Produce trade--Tanzania--Dar Es Salaam.
Urbanization--Tanzania--Dar Es Salaam.