Deconcentration without a "clean break".
Gordon
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P
D000569:Americas; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005843:Geography; D009656:North America; D011153:Population; D011157:Population Dynamics; D014481:United States; D014505:Urban Population
Americas; Demographic Factors; Developed Countries; Geographic Factors; Migration; North America; Northern America; Population; Population Dynamics; Rural-urban Migration; Spatial Distribution; United States; Urban Spatial Distribution