ビル・ネルソン
1 2 "Senator Bill Nelson" Archived 2012年3月1日, at the Wayback Machine.. Florida 4-H Hall of Fame. Retrieved 2009-12-15.
1 2 3 "Biography". U.S. Senator Bill Nelson - Florida (official U.S. Senate website). Retrieved 2009-12-16.
1 2 "Bill Nelson (D-Fla.)". WhoRunsGov.com. Retrieved 2009-12-15.
↑ "Bill Nelson". Washington Post:U.S. Congress Votes Database. Retrieved 2009-12-16.
↑ "Florida's senior senator praises Martinez, stays quiet about possible candidates in 2010". U.S. Senator Bill Nelson - Florida (official U.S. Senate website). Retrieved 2009-12-16.
↑ バイデン氏、NASA長官にネルソン氏指名 議員時代に宇宙飛行経験AFPBB News 2021年3月21日