[Cooperation of COMECON member countries in the field of population statistics].
D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D011154:Population Characteristics; D012106:Research; D014586:USSR
Developed Countries; Eastern Europe; Europe; Population Statistics; Research Methodology; Ussr
Spoluprace clenskych zemi RVHP v oblasti statistiky obyvatelstva