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Jefferson Airplane Jefferson Farfán Jefferson Davis Jefferson Lerma Jefferson (du thuyền) Jefferson Duque Jefferson City, Missouri Jefferson, Thomas Jefferson Baiano Jefferson, IowaTài liệu tham khảo
WikiPedia: Jefferson, Iowa //edwardbetts.com/find_link?q=Jefferson,_Iowa http://factfinder2.census.gov/faces/tableservices/... http://www.census.gov/geo/www/gazetteer/gazetteer2... http://data.iowadatacenter.org/datatables/PlacesAl...