Columbia subject headings:
Harvard subject headings:
Age distribution (Demography)--Economic aspects--Germany (West)
Age distribution (Demography)--Germany (West)
Germany (West)--Population.
Social security--Germany (West)
Princeton subject headings:
Age distribution (Demography)--Economic aspects--Germany (West).
Age distribution (Demography)--Germany (West).
Germany (West)--Population.
Social security--Germany (West)