Columbia subject headings:
Harvard subject headings:
Communities--Senegal--Case studies.
Migration, Internal--Italy--Piacenza.
Migration, Internal--Senegal.
Migration, Internal--Spain--La Coruña.
Population density--Senegal.
Rural development--Senegal
Senegal--Rural conditions.
Transnationalism.
Princeton subject headings:
Europe--Emigration and immigration.
Illegal aliens--Europe.
Rural-urban migration--Senegal.
Senegal--Emigration and immigration.