# Robert G. Calkins
**Wikidata**: [Q58883955](https://www.wikidata.org/wiki/Q58883955)  
**Source**: https://4ort.xyz/entity/robert-g-calkins


## References

1. Virtual International Authority File
2. Czech National Authority Database
3. [Source](http://catalogo.share-cat.unina.it/sharecat/searchNames?n_cluster_id=484117)
4. CiNii Research
5. National Library of Israel Names and Subjects Authority File