# rare book

> desirable book, sufficiently difficult to find that it seldom, or at least only occasionally, appears in the antiquarian trade

**Wikidata**: [Q203490](https://www.wikidata.org/wiki/Q203490)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Rare_book)  
**Source**: https://4ort.xyz/entity/rare-book


## References

1. Library of Congress Authorities
2. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=2816)
3. [Registros de autoridad de "Materia" de la Biblioteca Nacional de España. Spain open data portal](https://www.bne.es/media/datosgob/catalogo-autoridades/materia/materia-UTF8.zip)
4. YSO-Wikidata mapping project
5. UMLS 2023
6. National Library of Israel Names and Subjects Authority File
7. Wikibase TDKIV