Books by David Singmaster
Adventures in Recreational Mathematics
Problems for metagrobologists
Problems for metagrobologists
Sam Loyd's Greatest Puzzles
Sam Loyd's Greatest Puzzles
Handbook of Cubic Math
Sources in recreational mathem
Sources in recreational mathematics
Rubik's Cubic Compendium
A bűvös kocka
A bűvös kocka
Notes on Rubik magic cube
Notes on Rubik magic cube
Notes on Rubik's Magic Cube