Berggren,Lennart  <br/><br/>
Pi  : a sources book 
/ by Lennart Berggren, Jonathan Borwein, Peter  Borwein 
 - 2nd ed.  
 - Canada:   Springer;   2000.  
 - 736p.  
<br/><br/><label>ISBN: </label>0387989463  
<br/><br/><label>Dewey Class. No.: </label>516.22  / BER/P