Columbia subject headings:
Harvard subject headings:
Soviet Union--History, Military--Sources.
Soviet Union--History--1939-1945--Sources.
World War, 1939-1945--Underground movements--Soviet Union--Sources.
Princeton subject headings:
Soviet Union--History, Military--Sources.
Soviet Union--History--1939-1945--Sources.
World War, 1939-1945--Underground movements--Soviet Union--Sources.