Columbia subject headings:
Ruusbroec, Jan van, 1293-1381.
Spiritual life--Christianity--History of doctrines--Middle Ages, 600-1500.
Trinity--History of doctrines--Middle Ages, 600-1500.
Harvard subject headings:
Ruusbroec, Jan van, 1293-1381
Spiritual life--Christianity--History of doctrines--Middle Ages, 600-1500
Trinity--History of doctrines--Middle Ages, 600-1500.
Princeton subject headings: