Columbia subject headings:
Harvard subject headings:
Demographic transition--Economic aspects--Germany.
Demographic transition--Germany.
Friedrich, Peter, 1938---Bibliography.
Germany--Population policy.
Germany--Population.
Population aging--Germany.
Princeton subject headings:
Demographic transition--Economic aspects--Germany.
Demographic transition--Germany.
Friedrich, Peter, 1938---Bibliography.
Germany--Population policy.
Germany--Population.
Population aging--Germany.