# Barbara Marx Hubbard

> American writer (1929-2019)

**Wikidata**: [Q2900061](https://www.wikidata.org/wiki/Q2900061)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Barbara_Marx_Hubbard)  
**Source**: https://4ort.xyz/entity/barbara-marx-hubbard


## References

1. BnF authorities
2. Czech National Authority Database
3. general catalog of BnF
4. Virtual International Authority File
5. Faceted Application of Subject Terminology
6. SNAC
7. Internet Speculative Fiction Database
8. Regional Database of the Central Bohemian Research Library in Kladno