# Abraham Beer Duff
**Wikidata**: [Q97066166](https://www.wikidata.org/wiki/Q97066166)  
**Source**: https://4ort.xyz/entity/abraham-beer-duff


## References

1. IdRef
2. [Source](https://archive.org/details/sim_journal-officiel-de-la-republique-francaise_1956-06-09_133/page/n19/mode/2up)
3. [Source](https://pust.urbe.it/cgi-bin/koha/opac-authoritiesdetail.pl?marc=1&authid=67266)
4. BnF authorities
5. AlKindi
6. Virtual International Authority File