# Carl Haarnack
**Wikidata**: [Q95231586](https://www.wikidata.org/wiki/Q95231586)  
**Source**: https://4ort.xyz/entity/carl-haarnack


## References

1. Catalog of the German National Library
2. [Source](https://www.parool.nl/amsterdam/carl-haarnack-62-van-de-buku-bibliotheca-surinamica-overleden-in-amsterdam~b7aa5361/)
3. Czech National Authority Database