Columbia subject headings:
Emperors--Japan--History--To 1500.
Japan--Politics and government--To 794.
Mythology, Japanese.
Harvard subject headings:
Emperors--Japan--History--To 1500.
Japan--History--To 794
Mythology, Japanese
Princeton subject headings:
Emperors--Japan--History--To 1500.
Japan--History--To 794.
Mythology, Japanese.