The Era of Roman Conquest, Author Solutions (2011) ISBNs 1426981821, 9781426981821 Luis Berrocal-Rangel, Los pueblos célticos del soroeste de la Península Ibérica, Editorial Complutense, Madrid (1992) John T. Koch (ed.), Celtic Culture: A Historical Encyclopedia, ABC-CLIO Inc., Santa Barbara, California (2006) , 1-85109-445-8 External links http://www.celtiberiasoria.es http://www.celtiberia.net http://www.celtiberiahistorica.es "The Celtiberian and Roman city of Tiernes": an ongoing excavation Ancient peoples of Spain Celtic tribes of the Iberian Peninsula Pre-Roman peoples of the Iberian Peninsula