Columbia subject headings:
Harvard subject headings:
Andalusia (Spain)--Economic conditions.
Andalusia (Spain)--Social conditions.
Mano Negra Jerezana (Organization)--History--19th century.
Princeton subject headings:
Andalusia (Spain)--Rural conditions--History--19th century.
Mano Negra Jerezana (Organization)--History.
Working class--Spain--Andalusia--History--19th century.