# William K. Ehrenfeld
**Wikidata**: [Q110089894](https://www.wikidata.org/wiki/Q110089894)  
**Source**: https://4ort.xyz/entity/william-k-ehrenfeld


## References

1. BnF authorities
2. Integrated Authority File
3. Virtual International Authority File
4. Faceted Application of Subject Terminology
5. VcBA (identifier)