↑Rome and Baetica : Urbanization in Southern Spain c.50 BC-AD 150: Urbanization in Southern Spain c.50 BC-AD 150, Oxford classical monographs, A. T. Fear, Clarendon Press, 1996, ISBN 0-19-159164-5, ISBN 978-0-19-159164-8
↑General History of Western Nations from 5000 B.C. to 1900 A.D., Emil Reich, Macmillan and Company, Limited, 1908