Columbia subject headings:
Biographies.
Socialists--Japan--Biography.
Yokoyama, Gennosuke, 1871-1915.
Harvard subject headings:
Socialists--Japan--Biography
Yokoyama, Gennosuke, 1871-1915.
Princeton subject headings:
Socialists--Japan--Biography.
Yokoyama, Gennosuke, 1871-1915.