[Statistical surveys].
D003604:Czechoslovakia; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005060:Europe; D005061:Europe, Eastern; D005843:Geography; D006079:Government Publications as Topic; D011153:Population; D011156:Population Density; D011157:Population Dynamics; D011158:Population Growth; D012942:Social Sciences; D013223:Statistics as Topic
Czechoslovakia; Demographic Factors; Demography; Developed Countries; Eastern Europe; Europe; Geographic Factors; Government Publication; Historical Demography; Migration; Population; Population Density--history; Population Dynamics; Population Growth--changes; Social Sciences; Spatial Distribution--history; Tables And Charts