Columbia subject headings:
Harvard subject headings:
Japanese literature--Heian period, 794-1185--History and criticism
Japanese poetry--Heian period, 794-1185--History and criticism
Waka--History and criticism
Princeton subject headings:
Japanese literature--Heian period, 794-1185--History and criticism.
Japanese poetry--Heian period, 794-1185--History and criticism.
Waka--History and criticism.