Columbia subject headings:
Harvard subject headings:
Bonn, Moritz J. (Moritz Julius), 1873-1965--Political activity.
Bonn, Moritz J. (Moritz Julius), 1873-1965.
Economists--Germany--Biography
Liberalism
Princeton subject headings:
Bonn, Moritz J. (Moritz Julius), 1873-1965--Criticism and interpretation--Congresses.
Liberalism--Congresses.
National socialism--Congresses.
Political science--Germany--History--20th century--Congresses.