Columbia subject headings:
Harvard subject headings:
Beggars--Europe--History--Sources.
Beggars--Germany--History--Sources.
Homeless persons--Europe--History--Sources.
Homeless persons--Germany--History--Sources.
Poor--Europe--History--Sources.
Poor--Germany--History--Sources.
Tramps--Europe--History--Sources.
Tramps--Germany--History--Sources.
Princeton subject headings:
Beggars--Europe--History--Sources.
Homeless persons--Europe--History--Sources.
Poor--Europe--History--Sources.
Tramps--Europe--History--Sources.