Burnett, A. From the Death of Caesar to the Death of Vitellius. (London, 1992).
Also see:Burnett EnnaBurnett FirstBurnett RomanoBurnett SecondBurnett VenosaBurnett CoinageEssays HershRPC IRPC I
Also see:Burnett EnnaBurnett FirstBurnett RomanoBurnett SecondBurnett VenosaBurnett CoinageEssays HershRPC IRPC II