Columbia subject headings:
Harvard subject headings:
Poor--Germany--Cologne--History.
Poor--Japan--Osaka--History.
Poverty--Germany--Cologne--History.
Poverty--Japan--Osaka--History.
Public welfare--Germany--Cologne--History.
Public welfare--Japan--Osaka--History.
Princeton subject headings:
Poor--Germany--Cologne--History--19th century.
Poor--Japan--Osaka--History--20th century.
Poor--Services for--Germany--Cologne--History--19th century.
Poor--Services for--Japan--Osaka--History--20th century.
Public welfare--Germany--Cologne--History--19th century.
Public welfare--Japan--Osaka--History--20th century.