Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: The Origins of the British <unk> A Genetic Detective Story. 2006, Constable na Robinson. ISBN 1-84529-158-1. (Paperback, 2007, Constable & Robinson. ISBN 978-1-84529-482-3).  Ajụjụ: Gịnị bụ aha akwụkwọ ahụ?
Ebe Ndị Britain Si Malite <unk> Akụkọ Nnyocha Banyere Mkpụrụ Ndụ Ihe Nketa