Columbia subject headings:
Civil-military relations--Germany--History--20th century--Sources.
Civil-military relations--Germany--History--20th century.
Germany--Armed Forces--History--20th century--Sources.
Germany--Armed Forces--History--20th century.
Harvard subject headings:
Civil-military relations--Germany--History--20th century--Sources.
Civil-military relations--Germany--History--20th century.
Germany--Armed Forces--History--20th century--Sources.
Germany--Armed Forces--History--20th century.
Germany. Heer--History--Sources.
Princeton subject headings:
Germany--History--1933-1945.
Germany. Heer--History--20th century.