Columbia subject headings:
European cooperation--Congresses.
Foreign workers--Government policy--Europe--Congresses.
Foreign workers--Legal status, laws, etc.--Europe--Congresses.
Human rights--Europe--Congresses.
Harvard subject headings:
Employment in foreign countries
Foreign workers--Europe--Congresses
Foreign workers--Legal status, laws, etc.--Europe.
Princeton subject headings:
European cooperation--Congresses.
Foreign workers--Government policy--Europe--Congresses.
Foreign workers--Legal status, laws, etc.--Europe--Congresses.
Human rights--Europe--Congresses.