Blood of the Isles: Exploring the Genetic Roots of Our Tribal History
References ^ Bryan Sykes (2012). Blood of the Isles: Exploring the Genetic Roots of Our Tribal History, Bantam. ISBN 9780593056523 (revised May 2012)^ Bryan Sykes (2012). 9780593056523, DNA, Fossil. ISBN 9780593056523 (revised Oct 2012)