Columbia subject headings:
Anarchism--Spain--History--19th century.
Anarchism--Spain--History--20th century.
Bakunin, Mikhail Aleksandrovich, 1814-1876.
Spain--History.
Harvard subject headings:
Anarchism--Spain--History--20th century
Bakunin, Mikhail Aleksandrovich, 1814-1876--Influence.
Princeton subject headings:
Anarchism--Spain--History--19th century.
Anarchism--Spain--History--20th century.
Bakunin, Mikhail Aleksandrovich, 1814-1876--Influence.
Syndicalism--Spain--History--19th century.
Syndicalism--Spain--History--20th century.