# Bertha Upton
**Wikidata**: [Q42529759](https://www.wikidata.org/wiki/Q42529759)  
**Source**: https://4ort.xyz/entity/bertha-upton


## References

1. [BnF authorities](https://catalogue.bnf.fr/ark:/12148/cb15584422r)
2. Catalog of the German National Library
3. general catalog of BnF
4. Virtual International Authority File
5. [Source](http://onlinebooks.library.upenn.edu/webbin/book/lookupname?key=Upton%2c%20Bertha%2c%201849%2d1912)
6. Project Gutenberg
7. Internet Speculative Fiction Database
8. BnF authorities
9. Trove
10. National Library of Israel Names and Subjects Authority File