Columbia subject headings:
Humboldt-Gesellschaft für Wissenschaft, Kunst und Bildung--Congresses.
Interdisciplinary approach in education--Germany--History--Congresses.
Learned institutions and societies--Germany--History--Congresses.
Learning and scholarship--Germany--History--Congresses.
Harvard subject headings:
Humboldt-Gesellschaft für Wissenschaft, Kunst und Bildung--Congresses.
Interdisciplinary approach in education--Germany--History--Congresses.
Learned institutions and societies--Germany--History--Congresses.
Learning and scholarship--Germany--History--Congresses.
Princeton subject headings:
Humboldt-Gesellschaft für Wissenschaft, Kunst und Bildung--Congresses.
Interdisciplinary approach in education--Germany--History--Congresses.
Learned institutions and societies--Germany--History--Congresses.
Learning and scholarship--Germany--History--Congresses.