Columbia subject headings:
Catholic Church--Doctrines--Early works to 1800.
Hildegard, Saint, 1098-1179. Scivias.
Mysticism--Catholic Church--Early works to 1800.
Harvard subject headings:
Catholic Church--Doctrines.
God (Christianity)--History of doctrines--Middle Ages, 600-1500
Hildegard, Saint, 1098-1179. Scivias.
Mysticism--Catholic Church
Princeton subject headings:
Catholic Church--Doctrines--Early works to 1800.
Hildegard, Saint, 1098-1179. Scivias.
Mysticism--Catholic Church--Early works to 1800.