# Dewey Decimal Classification

> library classification system

**Wikidata**: [Q48460](https://www.wikidata.org/wiki/Q48460)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Dewey_Decimal_Classification)  
**Source**: https://4ort.xyz/entity/dewey-decimal-classification


## References

1. Nuovo soggettario
2. Freebase Data Dumps. 2013
3. Quora
4. FactGrid
5. National Library of Israel Names and Subjects Authority File
6. KBpedia
7. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)