Columbia subject headings:
Catholic Church--History--18th century--Congresses.
Catholic Church--History--19th century--Congresses.
Censorship--Religious aspects--Christianity--History--18th century--Congresses.
Censorship--Religious aspects--Christianity--History--19th century--Congresses.
Index librorum prohibitorum--Congresses.
Inquisition--Congresses.
Harvard subject headings:
Catholic Church--History--18th century--Congresses.
Catholic Church--History--19th century--Congresses.
Censorship--Religious aspects--Christianity--History--18th century--Congresses.
Censorship--Religious aspects--Christianity--History--19th century--Congresses.
Index librorum prohibitorum--Congresses.
Inquisition--Congresses.
Princeton subject headings: