| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Ancient Germanic Warriors | 978-0-415-48682-8 | 2008 | ||
| Ancient Germanic Warriors: Warrior Styles from Trajan's Column to Icelandic Sagas | 978-0-415-31199-1 | 2004 | ||
| Dawn of Japan: Emperor Jimmu with his Gods and Warriors on Third-Century Bronze Mirrors | 978-3-89500-801-6 | 2011 | Tomoko Fukushima | |
| Emperor Hadrian´s speeches to the African Army - a new Text | 978-3-7954-1984-4 | 2007 | ||
| Guards of the Roman armies: An essay on the singulares of the provinces | 978-3-7749-1428-5 | 1978 | ||
| Mithras-Orion: Greek Hero and Roman Army God | 978-90-04-06055-5 | 1997 | ||
| Riding for Caesar: The Roman Emperor's Horse Guard | 978-0-674-76898-7 | 1997 | ||
| Riding for Caesar: The Roman Emperors' Horse Guard | 978-0-674-76897-0 | 1994 | ||
| Riding for Caesar: the Roman Emperors' Horse Guards | 978-0-7134-6750-5 | 1994 | ||
M.P. · M S. · M. Speidel · Michael P. · Michael S. · Michael Speidel · P S
Batsford Ltd · Brill · Habelt, R · Harvard University Press · Reichert, L · Routledge · Schnell & Steiner