Columbia subject headings:
Murray, Nora Korzhenko, 1919-
Soviet Union--Social conditions.
Soviet Union. Narodnyĭ komissariat vnutrennikh del.
Spies--Soviet Union--Biography.
Harvard subject headings:
Murray, Nora Korzhenko, 1919-
Soviet Union--Social conditions--1917-1945.
Soviet Union. Narodnyĭ komissariat vnutrennikh del
Spies--Soviet Union--Biography.
Princeton subject headings: