Polya,G. <br/><br/>
Problemvand Theorems in Analysis 
/by G. Polya 
 - Nwe York:  Springer-Verlag;  1971. 
 - xi,391p. 
<br/><br/><label>ISBN: </label>3-540-06972-0 
<br/><br/><label>Dewey Class. No.: </label>515.076  / POL/P