Norris, H.T. (1961). «The Early Islamic Settlement in Gibraltar». Journal of the Royal Anthropological Institute of Great Britain and Ireland91: 39–51. doi:10.2307/2844467. ISSN0307-3114.
«Corrected transcript of evidence taken before the Foreign Affairs Select Committee». 28 Μαρτίου 2008. Answer to Question 257 by Jim Murphy: [T]he UK Government will never – "never" is a seldom-used word in politics – enter into an agreement on sovereignty without the agreement of the Government of Gibraltar and their people. In fact, we will never even enter into a process without that agreement.«Archived copy». Αρχειοθετήθηκε από το πρωτότυπο στις 3 Μαρτίου 2016. Ανακτήθηκε στις 30 Ιουλίου 2008.
«Corrected transcript of evidence taken before the Foreign Affairs Select Committee». 28 Μαρτίου 2008. Answer to Question 257 by Jim Murphy: [T]he UK Government will never – "never" is a seldom-used word in politics – enter into an agreement on sovereignty without the agreement of the Government of Gibraltar and their people. In fact, we will never even enter into a process without that agreement.«Archived copy». Αρχειοθετήθηκε από το πρωτότυπο στις 3 Μαρτίου 2016. Ανακτήθηκε στις 30 Ιουλίου 2008.
Norris, H.T. (1961). «The Early Islamic Settlement in Gibraltar». Journal of the Royal Anthropological Institute of Great Britain and Ireland91: 39–51. doi:10.2307/2844467. ISSN0307-3114.
