My best mathematical and logic puzzles.

Eitemau Tebyg

• My best mathematical and logic puzzles.
  gan: Gardner, Martin
  Cyhoeddwyd: (1994)
• The colossal book of mathematics : classic puzzles, paradoxes, and problems /
  gan: Garner, Martin
  Cyhoeddwyd: (2001)
• The colossal book of mathematics : classic puzzles, paradoxes, and problems /
  gan: Garner, Martin
  Cyhoeddwyd: (2001)
• The Riddle of Scheherazade and Other Amazing Puzzles, Ancient & Modern.
  gan: Smullyan, Raymond M.
  Cyhoeddwyd: (1997)
• The man who counted : collection of mathematical adventures /
  gan: Tahan Malba
  Cyhoeddwyd: (1993)