Columbia subject headings:
Harvard subject headings:
Internationaler Bund - Freier Träger der Jugend-, Sozial- und Bildungsarbeit--History.
Public welfare--History
Social service--Germany--International cooperation--History.
Social service--Germany--Societies, etc.--History.
Social service--History
Social work education--History.
Princeton subject headings:
Political activists--Germany.
Political participation--Germany.
Youth workers--Germany.