Border Defenses, Earthwork
| Autor: | Pollington, Stephen |
|---|---|
| Zdroj: | The Oxford Encyclopedia of Medieval Warfare and Military Technology, 1 ed., 2010. |
| Databáze: | Oxford Reference |
| Externí odkaz: |
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| Autor: | Pollington, Stephen |
|---|---|
| Zdroj: | The Oxford Encyclopedia of Medieval Warfare and Military Technology, 1 ed., 2010. |
| Databáze: | Oxford Reference |
| Externí odkaz: |
|