Columbia subject headings:
Libraries--Germany--Berlin--History.
Libraries--Poland--Kraków--History.
Musics--Manuscripts--Germany--Berlin--History.
Preussische Staatsbibliothek.
World War, 1939-1945--Libraries.
Harvard subject headings:
Music--Manuscripts--Germany--Berlin--History.
National libraries--Germany--Berlin--History--20th century.
National libraries--Poland--Kraków--History--20th century.
Preussische Staatsbibliothek--History--20th century.
World War, 1939-1945--Germany--Berlin.
World War, 1939-1945--Libraries.
World War, 1939-1945--Poland--Kraków.
Princeton subject headings: