# Library of Congress Subject Headings

> controlled vocabulary of bibliographic subject headings

**Wikidata**: [Q1823134](https://www.wikidata.org/wiki/Q1823134)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Library_of_Congress_Subject_Headings)  
**Source**: https://4ort.xyz/entity/library-of-congress-subject-headings


## References

1. Integrated Authority File
2. Virtual International Authority File
3. HathiTrust Catalogue
4. Library of Congress Name Authority File
5. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
6. RAMEAU
7. IdRef
8. National Library of Australia
9. [Source](http://www.loc.gov/aba/cataloging/subject/)
10. Datahub
11. [Source](http://rdf.freebase.com/ns/m.07pnv5)
12. Basic Register of Thesauri, Ontologies & Classifications
13. Library of Congress Authorities
14. [Source](http://id.loc.gov/authorities/classification/Z695.Z8L5)
15. [Source](http://id.loc.gov/authorities/classification/cf94054663)
16. Faceted Application of Subject Terminology
17. BabelNet
18. Quora
19. FactGrid
20. National Library of Israel Names and Subjects Authority File