Columbia subject headings:
Antislavery movements--Spain--History--19th century.
Slavery--Latin America--History--19th century.
Harvard subject headings:
Antislavery movements--Spain--History--19th century.
Slavery--Latin America--History--19th century.
Slavery--Spain--History--19th century.
Princeton subject headings:
Antislavery movements--Spain--History--19th century.
Slavery--Latin America--History--19th century.