The Science of Discworld IV: Judgement Day

From Author Wars - https://authorwars.com/publications/the-science-of-discworld-iv-judgement-day-1005101.html

Overview:

Title: The Science of Discworld IV: Judgement Day
Author: Jack Cohen, Terry Pratchett, Ian Stewart
Year: 2015
ISBN-10: 9780553397994
Publisher: Random House Audio
Binding: digital audio download
Type: Non-fiction
Title Reference: The Science of Discworld IV: Judgement Day
Notes: Unabridged. {{Narrator|Michael Fenton Stevens and Stephen Briggs}}. 12 hours, 17 minutes.