Columbia subject headings:
Harvard subject headings:
Catholic Church--Customs and practices--Congresses.
Christian saints--Cult--History--19th century--Congresses.
Christian saints--Cult--History--20th century--Congresses.
Spiritual life--Catholic Church--Congresses.
Princeton subject headings:
Catholic Church--Customs and practices--History--19th century.
Catholic Church--Customs and practices--History--20th century.
Christian saints--Cult--History--19th century.
Christian saints--Cult--History--20th century.
Devotional exercises--History--19th century.
Devotional exercises--History--20th century.
Devotional literature--History and criticism.
France--Religious life and customs.
Italy--Religious life and customs.
Spiritual life--Catholic Church--History--19th century.
Spiritual life--Catholic Church--History--20th century.