Columbia subject headings:
World War, 1939-1945--Campaigns--Balkan Peninsula.
World War, 1939-1945--Campaigns--Soviet Union.
World War, 1939-1945--Germany.
Harvard subject headings:
Hitler, Adolf, 1889-1945
World War, 1939-1945--Campaigns--Balkan Peninsula.
World War, 1939-1945--Campaigns--Soviet Union.
World War, 1939-1945--Germany.
Princeton subject headings:
World War, 1939-1945--Campaigns--Balkan Peninsula.
World War, 1939-1945--Campaigns--Soviet Union.