Block, Seymour S <br/><br/>
Before Sudoku : the world of magic squares 

 - Oxford:  Oxford University Press,  2009 
 - x, 239 p. : ill. ; 21 cm 
<br/><br/><label>ISBN: </label>9780195367904 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Magic squares
<br/><br/><label>Dewey Class. No.: </label>793.74 BLO