# Mark Long
**Wikidata**: [Q55987394](https://www.wikidata.org/wiki/Q55987394)  
**Source**: https://4ort.xyz/entity/mark-long-q55987394


## References

1. BnF authorities
2. datos.bne.es
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. Faceted Application of Subject Terminology
5. [Source](http://cantic.bnc.cat/registres/fitxa/138239)
6. Virtual International Authority File
7. National Library of Israel Names and Subjects Authority File