Roman Coins and Their Values. Vol. 3. The Decline and Fall of Rome and the Triumph of Christianity, A.D. 235-285, 2005. -

Voir également Volume 1. The Republic and the Twelve Caesars 280 BC - AD 96, 2000 (référence 23656) et Volume 2. The Accession of Nerva to the Overthrow of the Severan Dynasty AD 96 - AD 235, 2000 (référence 23655).