Columbia subject headings:
Anarchism.
Communism.
Fascism.
National socialism.
Social sciences.
Socialism.
Utopias.
Harvard subject headings:
Anarchism
Anarchists
Communism
Fascism
National socialism.
Social sciences
Socialism
Utopias
Princeton subject headings:
Anarchism.
Anarchists.
Communism.
Fascism.
National socialism.
Social sciences.
Socialism.
Utopias.