# John H. Block
**Wikidata**: [Q112477200](https://www.wikidata.org/wiki/Q112477200)  
**Source**: https://4ort.xyz/entity/john-h-block


## References

1. IdRef
2. Czech National Authority Database
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. CONOR.SI