Columbia subject headings:
Harvard subject headings:
Germany--Boundaries--Poland.
Oder-Neisse Line (Germany and Poland)--History.
Poland--Boundaries--Germany
Uniwersytet Poznański.
Uniwersytet im. Adama Mickiewicza w Poznaniu--History.
Western and Northern Territories (Poland)--Civilization.
Western and Northern Territories (Poland)--Research--Poland--History--20th century.
Princeton subject headings:
Uniwersytet Poznański.
Western and Northern Territories (Poland)--Civilization.
Western and Northern Territories (Poland)--Research--Poland--History--20th century.