# Peter Joseph Leydig
**Wikidata**: [Q55903603](https://www.wikidata.org/wiki/Q55903603)  
**Source**: https://4ort.xyz/entity/peter-joseph-leydig


## References

1. CERL Thesaurus
2. Catalog of the German National Library
3. IdRef
4. [Source](http://thesaurus.cerl.org/record/cnp00357916)