Columbia subject headings:
Finland--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--Finland.
World War, 1939-1945--Finland.
Harvard subject headings:
Finland--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--Finland.
World War, 1939-1945--Finland.
Princeton subject headings:
Finland--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--Finland.
World War, 1939-1945--Finland.