Sudoku: the origional number placing puzzle 

 - New Delhi  Harper Collins  2006 
 - v.p. 
<br/><br/><label>ISBN: </label>9780007832651 
<br/><br/><label>Subjects--Topical Terms: </label><br/>"Sudoku, Mathematical games and recreations, Puzzles"
<br/><br/><label>Dewey Class. No.: </label>793.74 SUD