Columbia subject headings:
Harvard subject headings:
Japanese poetry--Heian period, 794-1185--History and criticism
Ki, Tsurayuki, -945 or 946
Kokin wakashū.
Waka--History and criticism
Princeton subject headings:
Japanese poetry--Heian period, 794-1185--History and criticism.
Kokin wakashū.
Waka--History and criticism.