Columbia subject headings:
Harvard subject headings:
Europe--Emigration and immigration--Government policy
Illegal immigration--Europe.
Illegal immigration--Italy.
Italy--Emigration and immigration--Government policy.
Noncitizen detention centers--Europe.
Noncitizen detention centers--Italy.
Noncitizens--Europe.
Noncitizens--Italy
Princeton subject headings:
Europe--Emigration and immigration--Government policy.
Illegal aliens--Europe.
Illegal aliens--Italy.
Italy--Emigration and immigration--Government policy.
Noncitizen detention centers--Europe.
Noncitizen detention centers--Italy.