[Internal migration by regions, 1965-1978].
D003604:Czechoslovakia; D003625:Data Collection; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005060:Europe; D005061:Europe, Eastern; D006079:Government Publications as Topic; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012106:Research; D012494:Sampling Studies
Czechoslovakia; Demographic Factors; Developed Countries; Eastern Europe; Europe; Government Publication; Migration; Migration, Internal; Population; Population Dynamics; Population Statistics; Research Methodology; Sampling Studies; Studies; Surveys