Columbia subject headings:
Harvard subject headings:
Germany. Heer--Biography.
Heyl, Ludwig C. (Ludwig Cornelius), Freiherr von, 1920-
Soldiers--Germany--Biography
World War, 1939-1945--Personal narratives, German.
Princeton subject headings:
Germany. Heer--Biography.
Heyl, Ludwig C. (Ludwig Cornelius), Freiherr von, 1920-
Soldiers--Germany--Biography.
World War, 1939-1945--Personal narratives, German.