Columbia subject headings:
Crowds.
German literature--20th century--Themes, motives.
Leadership.
Social psychology.
War in literature.
Harvard subject headings:
Crowds.
German literature--20th century--History and criticism--Congresses
German literature--20th century--Themes, motives--Congresses.
German literature--20th century--Themes, motives.
Gernan literature--20th century--History and criticism--Congresses.
Heroes in literature--Congresses.
Leadership
Leadership--History--Congresses.
Leadership--Social aspects--Germany--Congresses.
Mass media--Germany--History--20th century--Congresses.
Mass media--Switzerland--History--20th century--Congresses.
Social psychology--History--Congresses.
Social psychology.
Swiss literature--20th century--History and criticism--Congresses.
Swiss literature--20th century--Themes, motives--Congresses.
War in literature--Congresses.
War in literature.
War in mass media--Congresses.
World War, 1914-1918--Germany--Literature and the war--Congresses.
World War, 1914-1918--Literature and the war--Congresses.
World War, 1914-1918--Mass media and the war--Congresses.
World War, 1914-1918--Social aspects--Congresses.
Princeton subject headings:
Crowds.
German literature--20th century--Themes, motives.
Leadership.
Social psychology.
War in literature.