Columbia subject headings:
Harvard subject headings:
Japan--Antiquities--Congresses.
Princeton subject headings:
Excavations (Archaeology)--Japan, Sea of, Region--Congresses.
Excavations (Archaeology)--Japan--Niigata-shi--Congresses.
Niigata-ken (Japan)--Antiquities--Congresses.
Pottery, Jōmon--Japan--Congresses.