Crilly,Tony <br/><br/>
Fifty mathematical ideas:   you really need to know/ 
Tony Crilly 
 - Great Britan  Quercus  2009 
 - 208p. 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics 
<br/><br/><label>Universal Decimal Class. No.: </label>510  / CRI