# Vol. 4

> 1972 studio album by Black Sabbath

**Wikidata**: [Q163950](https://www.wikidata.org/wiki/Q163950)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Vol._4_(Black_Sabbath_album))  
**Source**: https://4ort.xyz/entity/vol-4


## References

1. Encyclopaedia Metallum
2. MusicBrainz
3. AllMusic
4. Freebase Data Dumps. 2013
5. Discogs
6. Spotify