Llínea 28:
Llínea 28:
* David J. Breeze, "A Note on the Use of the Titles 'Optio' and 'Magister' below the Centurionate during the Principate", ''Britannia'' 7, 1976, pp. 127-133[http://www.jstor.org/pss/525768].
* David J. Breeze, "A Note on the Use of the Titles 'Optio' and 'Magister' below the Centurionate during the Principate", ''Britannia'' 7, 1976, pp. 127-133[http://www.jstor.org/pss/525768].
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[[Categoria:Imperi Romà]]
[[Categoria:Unitats militars de l'Antiga Roma]]
[[Categoria:Unitats militars de l'Antiga Roma]]