# Dr. Grégr a Ferd. Dattel

> Czech publishing house

**Wikidata**: [Q28842758](https://www.wikidata.org/wiki/Q28842758)  
**Source**: https://4ort.xyz/entity/dr-gr-gr-a-ferd-dattel


## References

1. Czech National Authority Database
2. Bibliography of the History of the Czech Lands