Columbia subject headings:
Harvard subject headings:
Latin America--Commerce--Spain--History--18th century.
Santander (Spain)--Commerce--History--18th century.
Spain--Colonies--America--Commerce--History--18th century.
Spain--Commerce--Latin America--History--18th century.
Spain--Commercial policy--History--18th century.
Princeton subject headings:
Latin America--Commerce--Spain--History.
Latin America--Commerce--Spain--Santander.
Merchant ships--Spain--History.
Santander (Spain)--Commerce--Latin America.
Spain--Commerce--Latin America--History.