Columbia subject headings:
Latin America--Commerce--Spain--History--19th century.
Spain--Commerce--Latin America--History--19th century.
Spain--Commercial policy--History--19th century.
Harvard subject headings:
Princeton subject headings:
Exports--Spain--History--19th century.
Imports--Latin America--History--19th century.
Latin America--Commerce--Spain--History--19th century.
Spain--Colonies--America--Commerce--History--19th century.
Spain--Commerce--Latin America--History--19th century.
Spain--Commercial policy--History--19th century.