Columbia subject headings:
Coastal archaeology--Japan.
Mounds--Japan--History--To 1500.
Tombs--Japan--History--To 1500.
Harvard subject headings:
Coastal archaeology--Japan.
Mounds--Japan--History--To 1500.
Tombs--Japan
Princeton subject headings:
Coastal archaeology--Japan.
Mounds--Japan--History--To 1500.
Tombs--Japan.