Columbia subject headings:
Japan--History--Period of northern and southern courts, 1336-1392.
Japan--Officials and employees--Salaries, etc.--History--To 1500.
Samurai--Rating of--History--To 1500.
Harvard subject headings:
Japan--History--Period of northern and southern courts, 1336-1392
Samurai
Princeton subject headings:
Japan--History--Period of northern and southern courts, 1336-1392.
Samurai.