Dio's Rome, Volume 5, Books 61-76 (A.D. 54-211) An Historical Narrative Originally Composed in Greek During The Reigns of Septimius Severus, Geta and Caracalla, Macrinus, Elagabalus and Alexander Severus: and Now Presented in English Form By - Cassius Dio Cocceianus (Project Gutenberg, 2004)