# William Richard Keefer

> American geologist

**Wikidata**: [Q64795463](https://www.wikidata.org/wiki/Q64795463)  
**Source**: https://4ort.xyz/entity/william-richard-keefer


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. Faceted Application of Subject Terminology
4. National Library of Israel Names and Subjects Authority File