Helfert, Joseph Alexander, Freiherr von, 1820–1910
Nationality: Undetermined, possibly 
(Italy)
Identities and Authority Control
- pdbooks.info ID: 152804
Freiherr von Joseph Alexander Helfert Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| Fabrizio Ruffo: Rivoluzione e Controrivoluzione di Napoli, dal Novembre 1798 all'Agosto 1799 | 1885 | Author | |  | | | |  
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