Columbia subject headings:
Bonn (Germany)--History--19th century.
Universität Bonn--History.
Harvard subject headings:
Bonn (Germany)--History.
Bonn. Universität--History.
Germany--History--Revolution, 1848-1849.
Princeton subject headings:
Bonn (Germany)--History--Revolution, 1848-1849.
Universität Bonn--History.