Columbia subject headings:
Music and state--Germany--History--20th century.
Music in art--History--20th century.
Postcards--Germany--History--20th century.
World War, 1914-1918--Germany--Propaganda--Pictorial works.
Harvard subject headings:
Music and state--Germany--History--20th century.
Music in art--History--20th century.
Postcards--Germany--History--20th century.
World War, 1914-1918--Germany--Propaganda--Pictorial works.
Princeton subject headings:
Music and state--Germany--History--20th century.
Music in art--History--20th century.
Postcards--Germany--History--20th century.
World War, 1914-1918--Germany--Propaganda--Pictorial works.