# Johan Tidemand Ruud

> Norwegian marine biologist (1903-1970)

**Wikidata**: [Q11978809](https://www.wikidata.org/wiki/Q11978809)  
**Source**: https://4ort.xyz/entity/johan-tidemand-ruud-q11978809


## References

1. [Great Norwegian Encyclopedia](https://nbl.snl.no/Johan_T_Ruud)
2. Hvem er Hvem? (1948)
3. [Digital Archives](https://www.digitalarkivet.no/view/387/pc00000001789853)
4. IdRef
5. [Geni](https://www.geni.com/people/Johan-Tidemand-Ruud/6000000020409820230)
6. Great Norwegian Encyclopedia
7. Integrated Authority File
8. [Source](http://viaf.org/viaf/data/viaf-20170101-links.txt.gz)
9. Virtual International Authority File
10. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
11. Norsk biografisk leksikon
12. [Digital Archives](https://www.digitalarkivet.no/census/person/pf01036510003694)
13. Digital Archives
14. [Source](https://www.digitalarkivet.no/view/387/pc00000001789853)
15. CONOR.SI
16. [Source](https://lokalhistoriewiki.no/wiki/Johan_Tidemand_Ruud)