[1] 合衆国領有小離島 - Wikipedia (2016-07-21 21:06:17 +09:00) <https://ja.wikipedia.org/wiki/%E5%90%88%E8%A1%86%E5%9B%BD%E9%A0%98%E6%9C%89%E5%B0%8F%E9%9B%A2%E5%B3%B6>

[2] United States Minor Outlying Islands - Wikipedia, the free encyclopedia (2016-07-22 20:02:31 +09:00) <https://en.wikipedia.org/wiki/United_States_Minor_Outlying_Islands>