# Umberto Utro
**Wikidata**: [Q106575368](https://www.wikidata.org/wiki/Q106575368)  
**Source**: https://4ort.xyz/entity/umberto-utro


## References

1. IdRef
2. Catalog of the German National Library
3. Catalogue of the Library of the Pontifical University of the Holy Cross
4. CONOR.SI
5. Catalogue of the Library of the Pontifical University of Saint Thomas Aquinas
6. [Source](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810693253205606)
7. Catalogue of the Rijksmuseum Research Library
8. VcBA (identifier)
9. Catalogue of the Unione Romana Biblioteche Scientifiche
10. Catalog of the Library of the American Academy in Rome
11. Catalog of the Library of the Svenska Institutet i Rom
12. [Source](https://biblioiglesia.tk/cgi-bin/koha/opac-authoritiesdetail.pl?marc=1&authid=25375)