Columbia subject headings:
Acracia.
Anarchism--Spain--Catalonia--History--19th century.
Federación Igualadina.
Press, Labor--Spain--Catalonia--History--19th century.
Harvard subject headings:
Princeton subject headings:
Acracia.
Anarchism--Spain--Catalonia--History--19th century.
Federación Igualadina.
Press, Labor--Spain--Catalonia--History--19th century.