# Fredrick F. Yonkman
**Wikidata**: [Q109833028](https://www.wikidata.org/wiki/Q109833028)  
**Source**: https://4ort.xyz/entity/fredrick-f-yonkman


## References

1. IdRef
2. Integrated Authority File
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. Faceted Application of Subject Terminology
5. Czech National Authority Database
6. Autoritats UB
7. CONOR.SI