Columbia subject headings:
Arrowheads--Poland.
Bronze spears--Poland.
Poland--Antiquities.
Projectile points--Poland.
Harvard subject headings:
Arrowheads--Poland.
Bronze spears--Poland.
Poland--Antiquities
Projectile points--Poland.
Princeton subject headings:
Arrowheads--Poland.
Bronze age--Poland.
Excavations (Archaeology)--Poland.
Iron age--Poland.
Poland--Antiquities.