. . "United States" . . . "Source book of county demographics"@en . . . "Demographics, marketing, and income data are arranged by county. Data are relevant for analysis of sales territories and advertising audience, site prospects for capital expansion, and potential consumer markets."@en . . . . . . . . . . . . "The Sourcebook of county demographics"@en . . . "Sourcebook of county demographics (Census ed.)"@en . . "Periodicals"@en . "Statistics"@en .