Columbia subject headings:
Harvard subject headings:
Anarchism--Spain--History--19th century.
Anarchism--Spain--History--20th century
Princeton subject headings:
Anarchism--Spain--History--19th century.
Anarchism--Spain--History--20th century.
Anarchists--Spain--History--19th century.
Anarchists--Spain--History--20th century.
Spain--History--19th century.
Spain--History--20th century.
Spain--Politics and government--19th century.
Spain--Politics and government--20th century.