Longo, Frank <br/><br/>
Black belt sudoku 
Frank Longo 
 - New York  Sterling  c2006 
 - 96 p. ; 9 cm. 
<br/><br/><label>ISBN: </label>9781402737619 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sudoku
<br/><br/><label>Dewey Class. No.: </label>793.73 LON