Standard metropolitan statistical classification: second proposal for changes in Standard Metropolitan Statistical Area criteria following the 1980 census.
D000569:Americas; D019352:Censuses; D003710:Demography; D019049:Developed Countries; D005843:Geography; D009656:North America; D011153:Population; D011154:Population Characteristics; D012042:Registries; D012106:Research; D014481:United States; D014505:Urban Population
Americas; Census; Developed Countries; Geographic Factors; North America; Northern America; Population; Population Register; Population Statistics; Research Methodology; Spatial Distribution; United States; Urban Spatial Distribution