# Stephen Marshak

> American geologist

**Wikidata**: [Q25928141](https://www.wikidata.org/wiki/Q25928141)  
**Source**: https://4ort.xyz/entity/stephen-marshak


## References

1. Czech National Authority Database
2. LIBRIS. 2009
3. Virtual International Authority File
4. National Library of Israel Names and Subjects Authority File