# Gustav Adolf Zimmermann
**Wikidata**: [Q109859868](https://www.wikidata.org/wiki/Q109859868)  
**Source**: https://4ort.xyz/entity/gustav-adolf-zimmermann


## References

1. Enciclopedia universal ilustrada europeo-americana (1908-1930)
2. Integrated Authority File
3. Virtual International Authority File
4. [Source](https://www.gutenberg.org/ebooks/author/25142)
5. Open Library