Columbia subject headings:
Emerson, Ralph Waldo, 1803-1882.
Novalis, 1772-1801.
Ruusbroec, Jan van, 1293-1381.
Harvard subject headings:
Emerson, Ralph Waldo, 1803-1882
Novalis, 1772-1801
Ruusbroec, Jan van, 1293-1381
Princeton subject headings:
Emerson, Ralph Waldo, 1803-1882.
Novalis, 1772-1801.
Ruusbroec, Jan van, 1293-1381.