Columbia subject headings:
Eugen Diederichs Verlag--History--Exhibitions.
Jena (Germany)--Intellectual life--20th century--Exhibitions.
Publishers and publishing--Germany--History--20th century--Exhibitions.
Harvard subject headings:
Book industries and trade--Germany--Jena--History--20th century--Exhibitions.
Diederichs, Eugen, 1867-1930--Exhibitions.
Eugen Diederichs Verlag--History--20th century--Exhibitions.
Humanities--Publishing--Germany--Jena--History--20th century--Exhibitions.
Princeton subject headings: