Columbia subject headings:
Freundlich, Otto, 1878-1943--Aesthetics.
Freundlich, Otto, 1878-1943. Ascension.
Harvard subject headings:
Freundlich, Otto, 1878-1943--Aesthetics.
Freundlich, Otto, 1878-1943. Ascension.
Princeton subject headings:
Freundlich, Otto, 1878-1943--Aesthetics.
Freundlich, Otto, 1878-1943. Ascension.