Columbia subject headings:
Demography--Congresses.
Economics--Congresses.
Macura, Miloš--Congresses.
Population research--Yugoslavia--Congresses.
Population--Congresses.
Harvard subject headings:
Demography--Congresses.
Demography.
Economics--Congresses
Macura, Miloš--Congresses.
Macura, Miloš.
Population
Population research--Yugoslavia--Congresses.
Population--Congresses
Princeton subject headings:
Demography.
Macura, Miloš.
Population.