Columbia subject headings:
Russo-Finnish War, 1939-1940.
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Soviet Union.
World politics.
Harvard subject headings:
Russo-Finnish War, 1939-1940
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Soviet Union.
World politics.
Princeton subject headings:
Russo-Finnish War, 1939-1940.
Soviet Union--Foreign relations--1917-1945.
World War, 1939-1945--Soviet Union.
World politics.