Columbia subject headings:
Spain--Civilization--18th century--Congresses.
Spain--Economic conditions--Congresses.
Spain--History--Charles III, 1759-1788--Congresses.
Spain--Politics and government--18th century--Congresses.
Spain--Social conditions--To 1800--Congresses.
Harvard subject headings:
Enlightenment--Spain--Congresses.
Spain--Civilization--18th century--Congresses.
Spain--Economic conditions--Congresses.
Spain--History--Charles III, 1759-1788--Congresses.
Spain--Politics and government--1759-1788--Congresses.
Spain--Politics and government--18th century--Congresses.
Spain--Social conditions--To 1800--Congresses.
Princeton subject headings:
Spain--Civilization--18th century--Congresses.
Spain--Economic conditions--Congresses.
Spain--History--Charles III, 1759-1788--Congresses.
Spain--Politics and government--18th century--Congresses.
Spain--Social conditions--To 1800--Congresses.