Columbia subject headings:
Conservatism--Europe, Western.
Political parties--Europe, Western.
Populism--Europe, Western.
Right-wing extremists--Europe, Western.
Harvard subject headings:
Conservatism--Europe
Political parties--Europe
Populism--Europe.
Right-wing extremists--Europe
Princeton subject headings:
Political parties--Europe, Western.
Political parties--North America.
Populism--Europe, Western.
Populism--North America.
Right-wing extremists--Europe, Western.
Right-wing extremists--North America.