Columbia subject headings:
Harvard subject headings:
Communists--Germany--Biography
Communists--Soviet Union--Biography
Political prisoners--Soviet Union--Biography
Soviet Union--History--1939-1945.
World War, 1939-1945--Soviet Union.
Princeton subject headings:
Communists--Germany--Biography.
Communists--Soviet Union--Biography.
Revolutionaries--Soviet Union--Biography.
Soviet Union. Narodnyĭ komissariat vnutrennikh del
Stalin, Joseph, 1878-1953.
State-sponsored terrorism--Soviet Union--History.