Columbia subject headings:
Christian sects, Medieval--History.
Laity.
Spiritual life--Christianity--History of doctrines--Middle Ages, 600-1500.
Harvard subject headings:
Christian sects, Medieval--History.
Laity.
Spiritual life--Christianity--History of doctrines--Middle Ages, 600-1500
Spiritual life--History of doctrines--Middle Ages, 600-1500.
Princeton subject headings:
Christian sects, Medieval--History.
Laity.
Spritual life--History of doctrines--Middle Ages, 600-1500.