# Antonio de Gregorio

> Italian malacologist (1855-1930)

**Wikidata**: [Q21504270](https://www.wikidata.org/wiki/Q21504270)  
**Source**: https://4ort.xyz/entity/antonio-de-gregorio-q21504270


## References

1. Virtual International Authority File
2. Faceted Application of Subject Terminology
3. Biodiversity Heritage Library
4. VcBA (identifier)
5. OPAC SBN
6. Biographies of the Entomologists of the World
7. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=De%20Gregorio%20Antonio)
8. Dizionario Biografico degli Italiani