# John Callow

> geographer and geohydrologist

**Wikidata**: [Q58449775](https://www.wikidata.org/wiki/Q58449775)  
**Source**: https://4ort.xyz/entity/john-callow-q58449775


## References

1. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0001-6525-953X/education/12766206)
2. [Source](http://orcid.org/0000-0001-6525-953X)
3. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0001-6525-953X/researcher-urls/2207395)
4. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0001-6525-953X/external-identifiers/101670)
5. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0001-6525-953X/external-identifiers/876985)