Columbia subject headings:
Demographic transition--Political aspects.
Demographic transition--Social aspects.
Demography.
Europe--Population.
Germany--Population.
Population policy.
Population--Political aspects.
Population--Social aspects.
Harvard subject headings:
Demographic transition--Political aspects.
Demographic transition--Social aspects.
Demography.
Europe--Population.
Germany--Population.
Population policy.
Population--Political aspects.
Population--Social aspects.
Princeton subject headings:
Demographic transition--Political aspects.
Demographic transition--Social aspects.
Demography.
Europe--Population.
Germany--Population.
Population policy.
Population--Political aspects.
Population--Social aspects.