Columbia subject headings:
China--Foreign relations--618-907.
China--Foreign relations--Japan.
Japan--Foreign relations--China.
Japan--Foreign relations--To 1600.
Tendai priests--Japan--History--To 1500.
Harvard subject headings:
China--Foreign relations--Japan--To 1500.
Japan--Foreign relations--China--To 1500.
Tendai priests--Japan--History--To 1500.
Princeton subject headings:
China--Foreign relations--Japan--To 1500.
Japan--Foreign relations--China--To 1500.
Tendai priests--Japan--History--To 1500.