Columbia subject headings:
Demographic surveys--Germany--Statistical methods--Congresses.
Demographic surveys--Poland--Statistical methods--Congresses.
Economic surveys--Germany--Statistics--Congresses.
Economic surveys--Poland--Statistics--Congresses.
Europe--Population--Statistics--Congresses.
Social surveys--Germany--Statistical methods--Congresses.
Social surveys--Poland--Statistical methods--Congresses.
Harvard subject headings:
Demographic surveys--Germany--Statistical methods--Congresses.
Demographic surveys--Poland--Statistical methods--Congresses.
Economic surveys--Germany--Statistics--Congresses.
Economic surveys--Poland--Statistics--Congresses.
Europe--Population--Statistics--Congresses.
Social surveys--Germany--Statistical methods--Congresses.
Social surveys--Poland--Statistical methods--Congresses.
Princeton subject headings:
Demographic surveys--Germany--Statistical methods--Congresses.
Demographic surveys--Poland--Statistical methods--Congresses.
Economic surveys--Germany--Statistics--Congresses.
Economic surveys--Poland--Statistics--Congresses.
Europe--Population--Statistics--Congresses.
Social surveys--Germany--Statistical methods--Congresses.
Social surveys--Poland--Statistical methods--Congresses.