# John Douglas Campbell

> geologist at University of Otago in New Zealand (1927-2001)

**Wikidata**: [Q119421814](https://www.wikidata.org/wiki/Q119421814)  
**Source**: https://4ort.xyz/entity/john-douglas-campbell-q119421814


## References

1. [Source](https://bts.nzpcn.org.nz/site/assets/files/24315/2001_bso_newsletter_volume_28_17-19.pdf)
2. [Source](https://www.tandfonline.com/doi/pdf/10.1080/03014223.2003.9517718)
3. [Source](http://hdl.handle.net/10523/10802)
4. [Source](http://hdl.handle.net/10523/3051)