Columbia subject headings:
Harvard subject headings:
Educational law and legislation--Germany--North Rhine-Westphalia--History.
Works councils--Law and legislation--Germany (West)--History.
Princeton subject headings:
Educational law and legislation--Germany--North Rhine-Westphalia--History.
Management--Employee participation--Law and legislation--Germany--North Rhine-Westphalia--History.
North Rhine-Westphalia (Germany)--Politics and government.