Polya, G. <br/><br/>
Problems and theorems in analysis  V.1 
by G.polya, G.Szego, tr. by D.Appeli 
 - Berlin  Springer-Verlag  1972 
 - xix, 389p.  incl. ind. 
 - Die Grundlenhren der mathematischen Wissenschaften  Band 193 .
<br/><br/><label>ISBN: </label>3540056726 
<br/><br/><label>Dewey Class. No.: </label>515.N721.1  /