Гладијус — разлика између измена

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* {{Cite book |ref= harv|author= Livius, Titus (known as Livy) | year=1982 | title=Rome and Italy: Books VI-X of the History of Rome from its Foundation, translated by Betty Radice | publisher=Penguin Books| isbn=978-0-14-044388-2}}

* {{cite book|last1=Humphrey|first1=John William|last2=Oleson|first2=John Peter|last3=Sherwood|first3=Andrew Neil|title=Greek and Roman Technology: A Sourcebook : Annotated Translations of Greek and Latin Texts and Documents|url=http://books.google.com/books?id=S5q4d4mMNQUC&pg=PA219|year=1998|publisher=Psychology Press|isbn=978-0-415-06137-7|pages=219–}}

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