[International migration in Portugal--1981].
Conim
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CN
D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005060:Europe; D005843:Geography; D011153:Population; D011157:Population Dynamics; D011174:Portugal
Demographic Factors; Developed Countries; Europe; Geographic Factors; Migration; Migration, Internal; Population; Population Dynamics; Portugal; Rural-urban Migration; Southern Europe