# Ernest F. Penrose
**Wikidata**: [Q52156855](https://www.wikidata.org/wiki/Q52156855)  
**Source**: https://4ort.xyz/entity/ernest-f-penrose


## References

1. Catalog of the German National Library
2. Faceted Application of Subject Terminology
3. 20th Century Press Archives
4. Catalogue of the Library of the Pontifical University of Saint Thomas Aquinas
5. NUKAT
6. National Library of Portugal
7. MAK
8. Trove
9. Virtual International Authority File
10. National Library of Israel Names and Subjects Authority File