Columbia subject headings:
Fortification, Prehistoric--Poland--Prosna River Valley.
Fortification, Prehistoric--Poland--Warta River Valley.
Lausitz culture--Poland.
Prosna River Valley (Poland)--Antiquities.
Warta River Valley (Poland)--Antiquities.
Harvard subject headings:
Excavations (Archaeology)--Poland--Prosna River Valley.
Excavations (Archaeology)--Poland--Warta River Valley.
Lausitz culture--Poland--Prosna River Valley.
Lausitz culture--Poland--Warta River Valley.
Prosna River Valley (Poland)--Antiquities.
Warta River Valley (Poland)--Antiquities.
Princeton subject headings: