Ring of Brodgar Bibliography

  1. 1.  Ritchie, Anna and Graham Ritchie. Oxford Archaeological Guide to Scotland, pp. 187, 189. Oxford University Press, USA. 30 November 1997.
  2. 2.  Burl, Aubrey and Dr. Aubrey Burl. A Guide to the Stone Circles of Britain, Ireland and Brittany, pp. 145-47. Yale University Press. 30 November 2004.
  3. 3.  Wills, Elspeth and Michael Wills. Blue Guide Scotland, p. 550. Blue Guide. 30 November 2000.
  4. 4.  Official Website of the Ring of Brodgar. Ring of Brodgar.