# Stanisław Ignacy Witkiewicz. Letters I
**Wikidata**: [Q137842692](https://www.wikidata.org/wiki/Q137842692)  
**Source**: https://4ort.xyz/entity/stanis-aw-ignacy-witkiewicz-letters-i


## References

1. [Source](https://piw.pl/biografia/198-listy-t-1-9788306033311.html)