# John Robert Ferris
**Wikidata**: [Q106688163](https://www.wikidata.org/wiki/Q106688163)  
**Source**: https://4ort.xyz/entity/john-robert-ferris


## References

1. Czech National Authority Database
2. Catalog of the German National Library
3. British National Bibliography
4. Virtual International Authority File
5. NUKAT
6. CiNii Research
7. CONOR.SI