Columbia subject headings:
Harvard subject headings:
Enlightenment--Spain
Internal security--Spain--History.
Spain--History--Charles III, 1759-1788.
Spain--Politics and government--1759-1788.
Princeton subject headings:
Enlightenment--Spain.
Internal security--Spain--History.
Spain--History--Charles III, 1759-1788.
Spain--Politics and government--1759-1788.