Broch (Portuguese Wikipedia)

MacKie, Euan W. (dezembro de 1965). «The Origin and Development of the Broch and Wheelhouse Building Cultures of the Scottish Iron Age». Cambridge University Press (CUP). Proceedings of the Prehistoric Society. 31: 93–146. ISSN 0079-497X. doi:10.1017/s0079497x00014742
Scott, Lindsay (1947). «The Problem of the Brochs». Cambridge University Press (CUP). Proceedings of the Prehistoric Society. 13: 1–36. ISSN 0079-497X. doi:10.1017/s0079497x00019605

megalithic.co.uk (Global: 8,511^th place; Portuguese: 9,367^th place)

Steveco (11 de novembro de 2002). «Iron Age and Later Prehistory - Dun Dornaigil». The Megalithic Portal. Cópia arquivada em 10 de junho de 2011
Hogan, C. Michael (7 October 2007) Burroughston Broch Arquivado em 10 junho 2011 no Wayback Machine The Megalithic Portal; retrieved 11 May 2008.

For the C14 dates for the Shetland sites see Shetland Amenity Trust Arquivado em 4 maio 2009 no Wayback Machine Acessado em 14 de agosto de 2007.

For the C14 dates for the Shetland sites see Shetland Amenity Trust Arquivado em 4 maio 2009 no Wayback Machine Acessado em 14 de agosto de 2007.
Scotland. Royal Commission on the Ancient and Historical Monuments and Constructions; Maxwell, Herbert (14 de maio de 2018). «Seventh report with inventory of monuments and constructions in the county of Dumfries». Edinburgh : H.M. Stationery Off. Cópia arquivada em 31 de agosto de 2016 – via Internet Archive
Steveco (11 de novembro de 2002). «Iron Age and Later Prehistory - Dun Dornaigil». The Megalithic Portal. Cópia arquivada em 10 de junho de 2011
McGinlay, Chris (23 de outubro de 2006). «Brochs of Shetland - Culswick». Cópia arquivada em 13 de maio de 2008
Hogan, C. Michael (7 October 2007) Burroughston Broch Arquivado em 10 junho 2011 no Wayback Machine The Megalithic Portal; retrieved 11 May 2008.
From Chatham to Chester and Lincoln to the Lake District – 38 UK places put themselves forward for World Heritage status, United Kingdom Department for Culture, Media and Sport, 7 de julho de 2010, consultado em 7 de julho de 2010, cópia arquivada em 13 de julho de 2010

MacKie, Euan W. (dezembro de 1965). «The Origin and Development of the Broch and Wheelhouse Building Cultures of the Scottish Iron Age». Cambridge University Press (CUP). Proceedings of the Prehistoric Society. 31: 93–146. ISSN 0079-497X. doi:10.1017/s0079497x00014742
Scott, Lindsay (1947). «The Problem of the Brochs». Cambridge University Press (CUP). Proceedings of the Prehistoric Society. 13: 1–36. ISSN 0079-497X. doi:10.1017/s0079497x00019605
Childe, V (2016). The prehistory of Scotland. London: Routledge. ISBN 978-1-138-81727-2. OCLC 944381428
Dockrill, S. J., Outram, Z. and Batt, C. M. (2006) Time and place: a new chronology for the origin of the broch based on the scientific dating programme at the Old Scatness Broch, Shetland, PSAS, v. 136, pp. 89-110; ISSN 0081-1564
Prehistoric Scotland (R.W. Feachem, 1992) ISSN 0305-8980