Columbia subject headings:
Harvard subject headings:
Japan--History--Tokugawa period, 1600-1868--Sources.
Shōguns--Correspondence.
Tokugawa, Ieyasu, 1543-1616--Correspondence.
Princeton subject headings:
Japan--History--Tokugawa period, 1600-1868--Sources.
Shoguns--Correspondence.
Tokugawa, Ieyasu, 1543-1616--Correspondence.