Columbia subject headings:
Japan--Social conditions--1600-1868.
Social classes--Japan--History--17th century.
Social classes--Japan--History--18th century.
Social classes--Japan--History--19th century.
Harvard subject headings:
Japan--History--Tokugawa period, 1600-1868
Japan--Social conditions--1600-1868
Social classes--Japan--History--17th century.
Social classes--Japan--History--18th century.
Social classes--Japan--History--19th century.
Princeton subject headings:
Japan--History--Tokugawa period, 1600-1868.
Japan--Social conditions--1600-1868.
Social classes--Japan--History--19th century.