Columbia subject headings:
Europe, Western--Emigration and immigration--Social aspects.
Multiculturalism--Europe, Western.
Multiculturalism--Sahel.
Regional planning--Social aspects--Europe, Western.
Regional planning--Social aspects--Sahel.
Sahel--Emigration and immigration--Social aspects.
Harvard subject headings:
Europe, Western--Emigration and immigration--Social aspects.
Multiculturalism--Europe, Western.
Multiculturalism--Sahel.
Regional planning--Social aspects--Europe, Western.
Regional planning--Social aspects--Sahel.
Sahel--Emigration and immigration--Social aspects.
Princeton subject headings:
Europe, Western--Emigration and immigration--Social aspects.
Multiculturalism--Europe, Western.
Multiculturalism--Sahel.
Regional planning--Social aspects--Europe, Western.
Regional planning--Social aspects--Sahel.
Sahel--Emigration and immigration--Social aspects.