Columbia subject headings:
Balck, Hermann, 1893-1982.
Generals--Germany--Biography.
Germany. Heer--Biography.
Harvard subject headings:
Balck, Hermann, 1893-
Balck, Hermann, 1893-1982.
Generals--Germany--Biography
Germany. Heer--Biography.
World War, 1914-1918--Personal narratives, German
World War, 1939-1945--Personal narratives, German.
Princeton subject headings:
Balck, Hermann, 1893-1982.
Generals--Germany--Biography.
Germany. Heer--Biography.