# John Leonard Greenberg
**Wikidata**: [Q105370715](https://www.wikidata.org/wiki/Q105370715)  
**Source**: https://4ort.xyz/entity/john-leonard-greenberg


## References

1. Virtual International Authority File
2. Open Library
3. datos.bne.es
4. NUKAT
5. [Source](https://opac.bg.cobiss.net/opac7/conor/10009445)
6. Catalogo of the National Library of India