# Roberto Ridolfi

> Italian historian and bibliologist (1899-1991)

**Wikidata**: [Q2159596](https://www.wikidata.org/wiki/Q2159596)  
**Source**: https://4ort.xyz/entity/roberto-ridolfi


## References

1. Dizionario Biografico degli Italiani. 2016
2. Virtual International Authority File
3. BnF authorities
4. BeWeB
5. datos.bne.es
6. quirinale.it
7. International Standard Name Identifier
8. CiNii Research
9. CONOR.SI
10. Autoritats UB
11. Treccani's Enciclopedia on line
12. Enciclopedia Treccani
13. LIBRIS. 2013
14. Catalogo of the National Library of India