Columbia subject headings:
Harvard subject headings:
Buddhism--Japan--History
Buddhist legends--Japan--History and criticism.
Japanese literature--Heian period, 794-1185--History and criticism
Keikai, active 8th century-9th century. Nihon ryōiki.
Princeton subject headings:
Buddhism--Japan--History.
Buddhist legends--Japan.
Keikai, active 8th century-9th century. Nihon ryōiki.