Bibliography

Walker 1976–8
D.R. Walker, The Metrology of the Roman Silver Coinage: Part I. From Augustus to Domitian, BAR Supplementary Series 5, 1976; Part II. From Nerva to Commodus, BAR Supplementary Series 22, 1977; Part III. From Pertinax to Uranius Antoninus, BAR Supplementary Series 40, 1978 
 
 
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