Columbia subject headings:
Harvard subject headings:
Church and state--Latin America--History.
Church and state--United States--History
Colonization--Religious aspects.
Latin America--History--To 1830.
Spain--Colonies--Administration.
Princeton subject headings:
America--Discovery and exploration--English.
America--Discovery and exploration--Spanish.
Civilization, Hispanic.
Spain--Civilization--Philosophy.
Spain--Politics and government--1975-.