Columbia subject headings:
Oder-Neisse Line (Germany and Poland)
Poland--History--Occupation, 1939-1945.
Sikorski, Władysław, 1881-1943.
World War, 1939-1945--Territorial questions--Poland.
Harvard subject headings:
Oder-Neisse Line (Germany and Poland)
Poland--History--Occupation, 1939-1945
Sikorski, Władysław, 1881-1943.
World War, 1939-1945--Territorial questions--Poland.
Princeton subject headings:
Oder-Neisse Line (Germany and Poland)
Poland--History--Occupation, 1939-1945.
Sikorski, Władysław, 1881-1943.
World War, 1939-1945--Territorial questions--Poland.