Columbia subject headings:
Harvard subject headings:
Deutsches Rundfunkarchiv--Catalogs.
German literature--Discography.
Germany--History--1871-1918--Discography.
Germany--History--1918-1933--Discography.
Sound recordings--Catalogs
Princeton subject headings:
Catalogs.
Deutsches Rundfunkarchiv--Catalogs.
Germany--History--1918-1933--Discography--Catalogs.
Germany--History--William II, 1888-1918--Discography--Catalogs.
Germany--Social conditions--1918-1933--Discography--Catalogs.
Popular culture--Germany--History--20th century--Discography--Catalogs.