Columbia subject headings:
Aging--Economic aspects--Poland.
Aging--Social aspects--Poland.
Old age--Economic aspects--Poland.
Old age--Social aspects--Poland.
Poland--Social conditions--1945-
Poland--Social policy.
Population aging--Poland.
Harvard subject headings:
Aging--Economic aspects--Poland.
Aging--Social aspects--Poland.
Old age--Economic aspects--Poland.
Old age--Social aspects--Poland.
Poland--Social conditions--1945-
Poland--Social policy.
Princeton subject headings: