Columbia subject headings:
Harvard subject headings:
Marburg-Biedenkopf (Germany)--Politics and government.
Socialism--Germany--Marburg-Biedenkopf--History.
Socialism--Germany--Marburg-Biedenkopf.
Princeton subject headings:
Marburg-Biedenkopf (Germany)--Politics and government.
Socialism--Germany--Marburg-Biedenkopf--History.