Columbia subject headings:
Harvard subject headings:
Human trafficking--Portugal--Congresses.
Noncitizen criminals--Portugal--Social conditions--Congresses.
Portugal--Emigration and immigration--Social aspects--Congresses.
Women immigrants--Portugal--Social conditions--Congresses.
Princeton subject headings:
Human trafficking--Portugal.
Noncitizen criminals--Portugal--Social conditions.
Portugal--Emigration and immigration--Social aspects.
Women immigrants--Portugal--Social conditions.