Experimental number theory  
Villegas, Fernando Rodriguez. 
 - Oxford ; | New York :  Oxford University Press,  2007 
 - xvi, 214 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9780198528227 (hbk.) | 0198528221 (hbk.) | 9780199227303 (pbk.) | 0199227306 (pbk.)