Sósíalismi augljóst Þyrnar martin gardner mathematical puzzles tilfinningaþrungin ás kaffi
The 2nd Scientific American Book of Mathematical Puzzles & Diversions by Martin Gardner: Very Good Trade Paperback (1961) First Thus | Cosmic Express Books
Solutions to Martin Gardner's best mathematical puzzles | Mathematics | The Guardian
Mathematical Puzzles and Diversions | Klein Project Blog
Mathematics, Magic and Mystery (Dover Puzzle Books: Math Puzzles): Gardner, Martin: 9780486203355: Amazon.com: Books
Five Martin Gardner eye-openers involving squares and cubes | plus.maths.org