Columbia subject headings:
Czechoslovakia--History--1938-1945.
Finland--History--1939-
Poland--History--Occupation, 1939-1945.
World War, 1939-1945--Czechoslovakia.
World War, 1939-1945--Finland.
World War, 1939-1945--Poland.
Harvard subject headings:
Russo-Finnish War, 1939-1940 World War, 1939-1945.
World War, 1939-1945--Czechoslovakia.
World War, 1939-1945--Finland.
World War, 1939-1945--Poland.
Princeton subject headings:
Czechoslovakia--History--1938-1945.
Finland--History--1939-1945.
Poland--History--Occupation, 1939-1945.
World War, 1939-1945--Czechoslovakia.
World War, 1939-1945--Finland.
World War, 1939-1945--Poland.