The Mayor of Uglyville's Dilemma and Other Mathematical Puzzles and Enigmas

Name: The Mayor of Uglyville's Dilemma and Other Mathematical Puzzles and Enigmas
Author: /author/%E8%89%BE%E6%81%A9%C2%B7%E5%8F%B2%E9%83%BD%E8%8F%AF_(The_Science_of_Discworld)

by 艾恩·史都華