Columbia subject headings:
Harvard subject headings:
Germany--Social policy--Congresses.
Marginality, Social--Congresses.
Poverty--Social aspects--Congresses.
Unemployment--Congresses
Wages--Congresses.
Princeton subject headings:
Germany--Social policy--Congresses.
Marginality, Social--Congresses.
Poverty--Social aspects--Congresses.
Unemployment--Congresses.
Wages--Congresses.