# Harold Keeling Moulton
**Wikidata**: [Q110225668](https://www.wikidata.org/wiki/Q110225668)  
**Source**: https://4ort.xyz/entity/harold-keeling-moulton


## References

1. Catalogue of the Library of the Pontifical University of the Holy Cross
2. Integrated Authority File
3. BnF authorities
4. Virtual International Authority File
5. CiNii Research
6. CONOR.SI
7. Catalogue of the Biblioteca Iglesia Nacional Española en Roma