# William Leslie Sumner
**Wikidata**: [Q52157077](https://www.wikidata.org/wiki/Q52157077)  
**Source**: https://4ort.xyz/entity/william-leslie-sumner


## References

1. BnF authorities
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. Virtual International Authority File
4. [Source](http://catalogue.nli.ie/Author/Home?author=Sumner%2C%20William%20Leslie%2C%201904-1973)
5. NUKAT
6. National Library of Portugal
7. MAK
8. Trove
9. datos.bne.es
10. National Library of Israel Names and Subjects Authority File
11. Catalogo of the National Library of India