Northern Ireland Tourist Board

Project Gutenberg. 1902 [2018-05-07]. （原始内容存档于2016-03-03）.  维基共享资源上的相关多媒体资源：鄧路斯城堡 from the Northern Ireland Tourist Board Discover Northern Ireland website.

Official Site of the Northern Ireland Tourist Board. [28 February 2009]. （原始内容存档于2011-02-18）.  Mason, Rowena. David Cameron: Northern Ireland to host G8 summit

National Trust > Giant's Causeway. Accessed 29 December 2013. Northern Ireland Tourist Board > Causeway Coast & Glens > The Giant's Causeway > Folklore and

（原始内容存档于2015-12-22）.  The ni2012: Our Time, Our Place story. Northern Ireland Tourist Board. [5 June 2014]. （原始内容存档于2014-06-06）.  "Addicted to state subvention

2004. ISBN 0-7509-3825-0.  History of Derry （页面存档备份，存于互联网档案馆），Northern Ireland Tourist Board，於2007年4月30日查閱 Mahon (1998), pp. 189–192. Derry City （页面存档备份，存于互联网档案馆），What's