Columbia subject headings:
Harvard subject headings:
Wielkopolska (Poland)--Historiography.
Wielkopolska (Poland)--History--19th century.
Wielkopolska (Poland)--History--20th century.
Princeton subject headings:
Regionalism--Poland--Wielkopolska.
Wielkopolska (Poland)--Civilization--19th century.
Wielkopolska (Poland)--Civilization--20th century.