Snyder, Arnold, <br/><br/>
Sudoku Formula 3 : 

 -  Cardoza,  2010. 
<br/><br/><label>ISBN: </label>9781580422499 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Games & Activities.
<br/><br/><label>Dewey Class. No.: </label>793.74  / SNY