Sudoku Puzzles for Kidsde Michael RiosMateriasLogic puzzlesSudokuMathematical recreationsSudoku, juvenile literatureEdiciones (1)Sudoku Puzzles for Kids (2005)Sterling · inglés · ISBN 9781402736025Más obras de Michael RiosDDiálogosDiálogosCCommunity Development and Democratic PracticeCommunity Development and Democratic PracticeSudoku Puzzles for Clever Kids