Columbia subject headings:
Europe--History--1918-1945--Sources.
Germany--History--1933-1945--Sources.
Germany. Wehrmacht. Oberkommando.
World War, 1939-1945--Campaigns--Western Front--Sources.
World War, 1939-1945--Germany--Sources.
Harvard subject headings:
Europe--History--1918-1945--Sources.
Germany--History--1933-1945--Sources.
Germany. Wehrmacht. Oberkommando.
World War, 1939-1945--Campaigns--Europe--Sources.
World War, 1939-1945--Germany--Sources.
Princeton subject headings:
Europe--History--1918-1945--Sources.
Germany--History--1933-1945--Sources.
Germany. Wehrmacht. Oberkommando
World War, 1939-1945--Campaigns--Europe--Sources.
World War, 1939-1945--Germany--Sources.