Columbia subject headings:
Harvard subject headings:
Jews--Germany--Exhibitions.
Lessing, Theodor, 1872-1933--Exhibitions.
Lessing, Theodor, 1872-1933--Political and social views--Exhibitions.
Philosophers--Germany--Exhibitions.
Philosophy, Modern--Exhibitions.
Princeton subject headings:
Lessing, Theodor, 1872-1933--Exhibitions.