# Robert Johnson
**Wikidata**: [Q99388778](https://www.wikidata.org/wiki/Q99388778)  
**Source**: https://4ort.xyz/entity/robert-johnson-q99388778


## References

1. Catalog of the German National Library
2. CERL Thesaurus
3. [Source](http://thesaurus.cerl.org/record/cnp01418309)