Columbia subject headings:
Soviet Union--History--German occupation, 1941-1944--Sources.
World War, 1939-1945--Soviet Union--Sources.
Harvard subject headings:
Soviet Union--History--German occupation, 1941-1944--Sources.
World War, 1939-1945--Soviet Union--Sources.
Princeton subject headings:
Soviet Union--History--German occupation, 1941-1944--Sources.
World War, 1939-1945--Soviet Union--Sources.