Chelsea as priciest postcode. [2016-02-04]. (原始内容存档于2016-03-03). Walk London: CapitalRing Section 11, Hendon Park to Highgate 互联网档案馆的存檔,存档日期2010-12-02.
(原始内容存档于2022-01-10). Alberta Transportation - Edmonton Ring Road (页面存档备份,存于互联网档案馆) Capital City Link Group - Northeast Anthony Henday Drive (页面存档备份,存于互联网档案馆)