Columbia subject headings:
Harvard subject headings:
Japan--History--Restoration, 1853-1870.
Nakaoka, Shintarō, 1838-1867.
Sakamoto, Ryōma, 1836-1867
Princeton subject headings:
Japan--History--Restoration, 1853-1870.
Nakaoka, Shintarō, 1838-1867.
Sakamoto, Ryōma, 1836-1867.