| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Ancient Europe 8000 B.C.--A.D. 1000: An Encyclopedia of the Barbarian World | 978-0-684-80670-9 (0-684-80670-3) | 2003 |
| Ancient Europe 8000 B.C. - A.D. 1000 - (Encyclopedia of the Barbarian World - Vol. 1 | 978-0-684-80669-3 (0-684-80669-X) | 2004 |