Columbia subject headings:
Charles III, King of Spain, 1716-1788.
Spain--History--Charles III, 1759-1788.
Harvard subject headings:
Charles III, King of Spain, 1716-1788.
Spain--History--Charles III, 1759-1788.
Princeton subject headings:
Charles III, King of Spain, 1716-1788.
Spain--History--Charles III, 1759-1788.