Columbia subject headings:
Harvard subject headings:
Ballads, Japanese--History and criticism
Japan--Civilization--1185-1600.
Japanese poetry--1185-1600--History and criticism
Sōka--History and criticism.
Princeton subject headings:
Ballads, Japanese--History and criticism.
Japan--Civilization--1185-1600.
Japanese poetry--1185-1600--History and criticism.
Sōka--History and criticism.