# natural obligation
**Wikidata**: [Q3880453](https://www.wikidata.org/wiki/Q3880453)  
**Source**: https://4ort.xyz/entity/natural-obligation


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=50758)
2. Nuovo soggettario
3. Integrated Authority File
4. National Library of Israel Names and Subjects Authority File