Columbia subject headings:
Foreign workers--Germany (West)--Statistics.
Professional employees--Developing countries--Statistics.
Professional employees--Germany (West)--Statistics.
Students, Foreign--Germany (West)--Statistics.
Harvard subject headings:
Foreign workers--Germany (West)--Statistics.
Professional employees--Developing countries--Statistics.
Professional employees--Germany (West)--Statistics.
Students, Foreign--Germany (West)--Statistics.
Princeton subject headings:
Foreign workers--Germany (West)--Statistics.
Professional employees--Developing countries--Statistics.
Professional employees--Germany (West)--Statistics.
Students, Foreign--Germany (West)--Statistics.