# Gregory J. Leonard

> American geologist and astronomer

**Wikidata**: [Q3776564](https://www.wikidata.org/wiki/Q3776564)  
**Source**: https://4ort.xyz/entity/gregory-j-leonard


## References

1. Czech National Authority Database
2. [Source](https://www.researchgate.net/scientific-contributions/2073556296_G_J_Leonard)
3. [Source](https://catalina.lpl.arizona.edu/person/greg-leonard)
4. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0001-7679-9486/external-identifiers/891893)