# The Science of Discworld IV: Judgement Day

> 2013 book by Terry Pratchett, Ian Stewart and Jack Cohen

**Wikidata**: [Q16955607](https://www.wikidata.org/wiki/Q16955607)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/The_Science_of_Discworld_IV:_Judgement_Day)  
**Source**: https://4ort.xyz/entity/the-science-of-discworld-iv-judgement-day


## References

1. [Source](https://openlibrary.org/works/OL17420962W/Science_of_Discworld_IV?edition=key%3A/books/OL26003451M)
2. [Source](https://www.librarything.com/work/13393954)
3. Internet Speculative Fiction Database