Columbia subject headings:
Fukuda, Riken, 1815-1889.
Mathematicians--Japan--Biography.
Mathematics, Japanese--History--19th century.
Mathematics--Japan--History--19th century.
Harvard subject headings:
Fukuda, Riken, 1815-1889.
Mathematicians--Japan--Biography
Mathematics, Japanese--History--19th century.
Mathematics--Japan--History--19th century.
Princeton subject headings:
Fukuda, Riken, 1815-1889.
Mathematicians--Japan--Biography.
Mathematics, Japanese--History--19th century.
Mathematics--Japan--History--19th century.