Columbia subject headings:
Harvard subject headings:
Japanese poetry--1185-1600--History and criticism
Japanese poetry--Japan--Heian period, 794-1185--History and criticism.
Waka--Japan--Heian period, 794-1185--History and criticism.
Waka--Japan--History and criticism.
Princeton subject headings:
Japanese poetry--1185-1600--History and criticism.
Japanese poetry--Heian period, 794-1185--History and criticism.
Waka--History and criticism.