Columbia subject headings:
Harvard subject headings:
Bohai (Kingdom)--Civilization.
Bohai (Kingdom)--Historiography.
China--Antiquities.
Excavations (Archaeology)--China--Manchuria.
Korea--Antiquities.
Princeton subject headings:
Bohai (Kingdom)--Civilization.
Bohai (Kingdom)--Historiography.
China--Antiquities.
Excavations (Archaeology)--China--Manchuria.
Korea--Antiquities.