ISBN 0-85115-375-5* Broun, Dauvit, "Pictish Kings 761–839: Integration with Dál Riata or Separate Development" in Sally M. Foster (ed.
ISBN 0-85115-375-5* Broun, Dauvit, «Pictish Kings 761—839: Integration with Dál Riata or Separate Development» in Sally M. Foster (ed.