Mensa Sudokude Michael RiosMateriasSudokuMathematical recreationsLogic puzzlesEdiciones (1)Mensa Sudoku (2005)Sterling · inglés · ISBN 9781402736001Más obras de Michael RiosDDiálogosDiálogosCCommunity Development and Democratic PracticeCommunity Development and Democratic PracticeSudoku Puzzles for Clever Kids