Columbia subject headings:
Harvard subject headings:
Czechoslovakia--History--1938-1945.
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.