Columbia subject headings:
Finland--History--1918-1939.
Scandinavia--History--20th century.
World War, 1939-1945--Finland.
World War, 1939-1945--Scandinavia.
Harvard subject headings:
Finland--History--1918-1939.
Scandinavia--History--20th century.
World War, 1939-1945--Finland.
World War, 1939-1945--Scandinavia.
Princeton subject headings:
Finland--History--1917-1945.
Scandinavia--History--20th century.
World War, 1939-1945--Finland.
World War, 1939-1945--Scandinavia.