| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Cicero and the Catilinarian Conspiracy | Paperback | 978-0-415-80878-1 | 2011 |
| Cicero and the Catilinarian Conspiracy | Hardcover | 978-0-415-87472-4 | 2010 |
| Constantine and the Christian Empire | " | 978-0-415-57534-8 | 2010 |
| Constantine and the Christian Empire | Paperback | 978-0-415-38655-5 | 2005 |
| Constantine and the Christian Empire | Hardcover | 978-0-415-17485-5 | 2004 |