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Sheffield F.C. Sheffield Wednesday F.C. Sheffield United F.C. Sheffield Sheffield and Hallamshire County Senior League Sheffield, Alabama Sheffield, Iowa Sheffield, Ohio Sheffield Lake, Ohio Sheffield, IllinoisTài liệu tham khảo
WikiPedia: Sheffield,_Illinois http://factfinder2.census.gov/faces/tableservices/... http://www.census.gov/geo/www/gazetteer/gazetteer2...