Columbia subject headings:
Harvard subject headings:
Labor movement--Japan--Biography--Dictionaries--Japanese.
Labor--Japan--Biography--Dictionaries--Japanese.
Socialism--Japan--Biography--Dictionaries--Japanese.
Working class--Japan--Biography--Dictionaries--Japanese.
Princeton subject headings:
Labor movement--Japan--Biography--Dictionaries--Japanese.
Socialism--Japan--Biography--Dictionaries--Japanese.
Working class--Japan--Biography--Dictionaries--Japanese.